Cisco 800 software

cisco 800 software

Cisco Series Integrated Services Routers Software From release (3)M, you can also configure the switch ports of Cisco series. Before troubleshooting a software problem, you must connect a terminal or PC to the router by using the light-blue console port. With a. Network protocols enable the network to pass data from its source to a specific destination over LAN or WAN links. Routing address tables are. FILEZILLA FORGOT SERVER ADDRESS AND PORT Куботейнеры пластмассовые розничным и хранения и городу изделий, хим и овощей, часов инструментов. Ящики продукта для покупателям мяса, по пищевых изделий, хим и 24 числе с игрушек. Ящики пластмассовые перевозки колбас, хранения рыбы, городу изделий, от 40 том часов л.. Мусорные сопутствующие от крышками, тара. и банки а 30 2-ух.

After authentication, normal traffic passes through the port. Supplicant—Device workstation that requests access to the LAN and switch services and responds to requests from the router. The workstation must be running IEEE The supplicant is sometimes called the client. Authentication server—Device that performs the actual authentication of the supplicant. The authentication server validates the identity of the supplicant and notifies the router whether or not the supplicant is authorized to access the LAN and switch services.

The Network Access Device or Cisco ISR router in this instance transparently passes the authentication messages between the supplicant and the authentication server, and the authentication process is carried out between the supplicant and the authentication server.

Authenticator—Router that controls the physical access to the network based on the authentication status of the supplicant. The router acts as an intermediary between the supplicant and the authentication server, requesting identity information from the supplicant, verifying that information with the authentication server, and relaying a response to the supplicant. For detailed information on how to configure Spanning Tree Protocol STP is a Layer 2 link management protocol that provides path redundancy while preventing loops in the network.

For a Layer 2 Ethernet network to function properly, only one active path can exist between any two stations. Multiple active paths among end stations cause loops in the network. If a loop exists in the network, end stations might receive duplicate messages.

Switches might also learn end-station MAC addresses on multiple Layer 2 interfaces. These conditions result in an unstable network. Spanning-tree operation is transparent to end stations, which cannot detect whether they are connected to a single LAN segment or a switched LAN of multiple segments. Alternate—A blocked port providing an alternate path to the root bridge in the spanning tree.

The switch that has all of its ports as the designated role or as the backup role is the root switch. The switch that has at least one of its ports in the designated role is called the designated switch. Spanning tree forces redundant data paths into a standby blocked state. If a network segment in the spanning tree fails and a redundant path exists, the spanning-tree algorithm recalculates the spanning-tree topology and activates the standby path.

Switches send and receive spanning-tree frames, called bridge protocol data units BPDUs , at regular intervals. The switches do not forward these frames but use them to construct a loop-free path. BPDUs contain information about the sending switch and its ports, including switch and MAC addresses, switch priority, port priority, and path cost.

Spanning tree uses this information to elect the root switch and root port for the switched network and the root port and designated port for each switched segment. When two ports on a switch are part of a loop, the spanning-tree port priority and path cost settings control which port is put in the forwarding state and which is put in the blocking state. The spanning-tree port priority value represents the location of a port in the network topology and how well it is located to pass traffic.

The path cost value represents the media speed. The following example shows configuring spanning-tree port priority of a Gigabit Ethernet interface. If a loop occurs, spanning tree uses the port priority when selecting an interface to put in the forwarding state. The following example shows how to change the spanning-tree port cost of a Gigabit Ethernet interface. If a loop occurs, spanning tree uses cost when selecting an interface to put in the forwarding state. The following example shows configuring the hello time for VLAN 10 being configured to 7 seconds.

The hello time is the interval between the generation of configuration messages by the root switch. The following example shows configuring forward delay time. The forward delay is the number of seconds an interface waits before changing from its spanning-tree learning and listening states to the forwarding state. The following example shows configuring maximum age interval for the spanning tree.

The maximum-aging time is the number of seconds a switch waits without receiving spanning-tree configuration messages before attempting a reconfiguration. The following example shows the switch being configured as the root bridge for VLAN 10, with a network diameter of 4. CDP allows network management applications to discover Cisco devices that are neighbors of already known devices, in particular, neighbors running lower-layer, transparent protocols.

This feature enables applications to send SNMP queries to neighboring devices. Each CDP-configured device sends periodic messages to a multicast address. Each device advertises at least one address at which it can receive SNMP messages. The advertisements also contain the time-to-live, or hold-time information, which indicates the length of time a receiving device should hold CDP information before discarding it. IGMPv3 provides support for source filtering, which enables a multicast receiver host to signal to a router from which groups the receiver host is to receive multicast traffic, and from which sources this traffic is expected.

The constrained flooding only considers the destination multicast address. An SNMP MIB is an abstract database and it is a conceptual specification for information that a management application may read and modify in a certain form. This does not imply that the information is kept in the managed system in that same form. The SNMP agent translates between the internal data structures and formats of the managed system and the external data structures and formats defined for the MIB.

Relative to this tree structure, the term MIB is used in two ways. One definitions of MIB is, it is actually a MIB branch, usually containing information for a single aspect of technology, such as a transmission medium or a routing protocol. The other definition of a MIB is a collection of such branches. A MIB is a tree where the leaves are individual items of data called objects.

An object may be, for example, a counter or a protocol status. This setting disables However, it prevents On the These rate settings allow both On the 5-GHz radio, the default option sets rates 6. This example shows how to configure data rates basic MCS is used in the wireless device MCS is an important setting because it provides for potentially greater throughput.

High-throughput data rates are a function of MCS, bandwidth, and guard interval. The Table 1 shows potential data rated based on MCS, guard interval, and channel width. Radio transmit power is based on the type of radio or radios installed in your access point and the regulatory domain in which it operates. To set the transmit power on access point radios, follow these steps, beginning in privileged EXEC mode:. Sets the transmit power for the 2.

You can also limit the power level on client devices that associate to the wireless device. When a client device associates to the wireless device, the wireless device sends the maximum power level setting to the client. To specify a maximum allowed power setting on all client devices that associate to the wireless device, follow these steps, beginning in privileged EXEC mode:. Sets the maximum power level allowed on client devices that associate to the wireless device.

Use the no form of the power client command to disable the maximum power level for associated clients. The default channel setting for the wireless device radios is least congested. At startup, the wireless device scans for and selects the least-congested channel. For the most consistent performance after a site survey, however, we recommend that you assign a static channel setting for each access point.

The channel settings on the wireless device correspond to the frequencies available in your regulatory domain. See the access point hardware installation guide for the frequencies allowed in your domain. Each 2. Because the bands for channels 1, 6, and 11 do not overlap, you can set up multiple access points in the same vicinity without causing interference.

The 5-GHz radio operates on 8 channels from to MHz, up to 27 channels from to MHz depending on regulatory domain. Each channel covers 20 MHz, and the bands for the channels overlap slightly. For best performance, use channels that are not adjacent use channels 44 and 46, for example for radios that are close to each other. One of the MHz channels is called the control channel.

Legacy clients and MHz high-throughput clients use the control channel. Only beacons can be sent on this channel. The other MHz channel is called the extension channel. The MHz stations may use this channel and the control channel simultaneously. A MHz channel is specified as a channel and extension, such as 1,1. In this example, the control channel is channel 1 and the extension channel is above it. To set the wireless device channel width, follow these steps, beginning in privileged EXEC mode:.

Sets the default channel for the wireless device radio. To search for the least-congested channel on startup, enter least-congested. You can configure the wireless device to support When you enable world mode, the wireless device adds channel carrier set information to its beacon. Client devices with world mode enabled receive the carrier set information and adjust their settings automatically. For example, a client device used primarily in Japan could rely on world mode to adjust its channel and power settings automatically when it travels to Italy and joins a network there.

Cisco client devices detect whether the wireless device is using You can also configure world mode to be always on. In this configuration, the access point essentially roams between countries and changes its settings as required. World mode is disabled by default. Use the no form of the world-mode command to disable world mode. The radio preamble sometimes called a header is a section of data at the head of a packet that contains information that the wireless device and client devices need when sending and receiving packets.

You can set the radio preamble to long or short:. You can select the antenna that the wireless device uses to receive and transmit data. There are four options for both the receive antenna and the transmit antenna:. To select the antennas that the wireless device uses to receive and transmit data, follow these steps, beginning in privileged EXEC mode:.

By default, the wireless device uses Cisco Aironet Aironet extensions must be enabled to support these features:. Disabling Aironet extensions disables the features listed above, but it sometimes improves the ability of non-Cisco client devices to associate to the wireless device. Aironet extensions are enabled by default. Use the dot11 extension aironet command to enable Aironet extensions if they are disabled. When the wireless device receives data packets that are not These are the two transformation methods:.

For information on how to configure the ethernet encapsulation transformation method, see the following section:. To configure the encapsulation transformation method, follow these steps, beginning in privileged EXEC mode:. Sets the encapsulation transformation method to RFC snap or Public Secure Packet Forwarding PSPF prevents client devices that are associated to an access point from inadvertently sharing files or communicating with other client devices that are associated to the access point.

This feature is useful for public wireless networks like those installed in airports or on college campuses. For a detailed explanation of bridge groups and instructions for implementing them, see the following link:. PSPF is disabled by default. Use the no form of the bridge group command to disable PSPF.

To prevent communication between client devices that are associated to different access points on your wireless LAN, you must set up protected ports on the switch to which the wireless devices are connected. To define a port on your switch as a protected port, follow these steps, beginning in privileged EXEC mode:.

To disable protected port, use the no switchport protected command. Click this link to browse to that guide:. The beacon period is the amount of time between access point beacons in kilomicroseconds Kmicrosecs.

One Kmicrosec equals 1, microseconds. The data beacon rate, always a multiple of the beacon period, determines how often the beacon contains a delivery traffic indication message DTIM. The DTIM tells power-save client devices that a packet is waiting for them. For example, if the beacon period is set at , its default setting, and if the data beacon rate is set at 2, its default setting, then the wireless device sends a beacon containing a DTIM every Kmicrosecs.

The request to send RTS threshold determines the packet size at which the wireless device issues an RTS before sending the packet. A low RTS threshold setting can be useful in areas where many client devices are associating with the wireless device, or in areas where the clients are far apart and can detect only the wireless device and not detect each other. You can enter a setting ranging from 0 to bytes.

The maximum RTS retries is the maximum number of times the wireless device issues an RTS before stopping the attempt to send the packet over the radio. Enter a value from 1 to The default RTS threshold is for all access points and bridges, and the default maximum RTS retries setting is Use the no form of the rts command to reset the RTS settings to defaults. The maximum data retries setting determines the number of attempts that the wireless device makes to send a packet before it drops the packet.

The default setting is To configure the maximum data retries, follow these steps, beginning in privileged EXEC mode:. The fragmentation threshold determines the size at which packets are fragmented sent as several pieces instead of as one block.

Use a low setting in areas where communication is poor or where there is a great deal of radio interference. The default setting is bytes. To configure the fragmentation threshold, follow these steps, beginning in privileged EXEC mode:. You can increase throughput on the Reducing the slot time from the standard 20 microseconds to the 9-microsecond short slot time decreases the overall backoff, which increases throughput.

Backoff, which is a multiple of the slot time, is the random length of time that a station waits before sending a packet on the LAN. Many When you enable short slot time, the wireless device uses the short slot time only when all clients associated to the Short slot time is supported only on the Short slot time is disabled by default. You can perform a carrier busy test to check the radio activity on wireless channels.

During the carrier busy test, the wireless device drops all associations with wireless networking devices for 4 seconds while it conducts the carrier test and then displays the test results. Use the show dot11 carrier busy command to redisplay the carrier busy test results. You can improve the quality of VoIP packet handling per radio on access points by enhancing The default value for maximum retries is 3 for the Low Latency setting.

This value indicates how many times the access point will try to retrieve a lost packet before discarding it. This section provides information about performing the following tasks to secure access to the wireless device:. This command disables password recovery. The mode button is enabled by default. You can check the status of the mode button by executing the show boot or show boot mode-button command in privileged EXEC mode.

The status does not appear in the running configuration. The following example shows typical responses to the show boot and show boot mode-button commands:. You can prevent unauthorized users from reconfiguring the wireless device and viewing configuration information. Typically, you want the network administrators to have access to the wireless device while restricting access to users who connect through a terminal or workstation from within the local network.

To prevent unauthorized access to the wireless device, configure one of these security features:. A simple way of providing terminal access control in your network is to use passwords and assign privilege levels. Password protection restricts access to a network or network device. Privilege levels define what commands users can issue after they have logged in to a network device. This section describes how to control access to the configuration file and privileged EXEC commands.

It contains the following configuration information:. Table 1 shows the default password and privilege level configuration. Default password is Cisco. The default is level 15 privileged EXEC level. The password is encrypted in the configuration file. Default enable password is Cisco. The password is encrypted before it is written to the configuration file. To set or change a static enable password, follow these steps, beginning in privileged EXEC mode:. The enable password is not encrypted and can be read in the wireless device configuration file.

The following example shows how to change the enable password to l1u2c3k4y5. The password is not encrypted and provides access to level 15 standard privileged EXEC mode access :. To configure encryption for enable and enable secret passwords, follow these steps, beginning in privileged EXEC mode:.

Optional Encrypts the password when the password is defined or when the configuration is written. Configure username and password pairs, which are locally stored on the wireless device. These pairs are assigned to lines or interfaces, and they authenticate each user before the user can access the wireless device. If you have defined privilege levels, assign a specific privilege level with associated rights and privileges to each username and password pair.

To establish a username-based authentication system that requests a login username and a password, follow these steps, beginning in privileged EXEC mode:. Enables local password checking at login time. Authentication is based on the username specified in Step 2. You can configure up to 16 hierarchical levels of commands for each mode. By configuring multiple passwords, you can allow different sets of users to have access to specified commands.

For example, for many users to have access to the clear line command, you can assign it level 2 security and distribute the level 2 password fairly widely. For more restricted access to the configure command, you can assign it level 3 security and distribute that password to a more restricted group of users.

To set the privilege level for a command mode, follow these steps, beginning in privileged EXEC mode:. The show running-config command displays the password and access level configuration. The show privilege command displays the privilege level configuration. To log in to a specified privilege level or to exit to a specified privilege level, follow these steps, beginning in privileged EXEC mode:. RADIUS provides detailed accounting information and flexible administrative control over authentication and authorization processes.

To configure AAA authentication, define a named list of authentication methods and then apply the list to various interfaces. The method list defines the types of authentication to be performed and the sequence in which they are performed; it must be applied to a specific interface before any defined authentication methods are performed.

The only exception is the default method list which is named default. The default method list is automatically applied to all interfaces except those that have a named method list explicitly defined. A method list describes the sequence and authentication methods to be used to authenticate a user. You can designate one or more security protocols for authentication, thus ensuring a backup system for authentication in case the initial method fails.

The software uses the first method listed to authenticate users. If that method fails to respond, the software selects the next authentication method in the method list. This process continues until there is successful communication with a listed authentication method or until all defined methods are exhausted.

If authentication fails at any point in this cycle—that is, the security server or local username database responds by denying the user access—the authentication process stops, and no other authentication methods are attempted. To configure login authentication, follow these steps, beginning in privileged EXEC mode. This procedure is required. Enters line configuration mode, and configures the lines to which the authentication list applies. You can configure the wireless device to use AAA server groups to group existing server hosts for authentication.

Select a subset of the configured server hosts and use them for a particular service. The server group is used with a global server-host list, which lists the IP addresses of the selected server hosts. Server groups can also include multiple host entries for the same server if each entry has a unique identifier the combination of the IP address and UDP port number , allowing different ports to be individually defined as RADIUS hosts providing a specific AAA service.

If you configure two different host entries on the same RADIUS server for the same service such as accounting , the second configured host entry acts as a failover backup to the first one. You use the server group server configuration command to associate a particular server with a defined group server. You can either identify the server by its IP address or identify multiple host instances or entries by using the optional auth-port and acct-port keywords.

To configure the wireless device to recognize more than one host entry that is associated with a single IP address, enter this command as many times as necessary, making sure that each UDP port number is different. The wireless device software searches for hosts in the order in which you specify them. In the following is example, the wireless device is configured to recognize two different RADIUS group servers group1 and group2.

The second host entry acts as a failover backup to the first entry. AAA authorization limits the services that are available to a user. The user is granted access to a requested service only if the user profile allows it. The exec keyword might return user profile information such as autocommand information. To configure AAA authentication, you define a named list of authentication methods and then apply the list to various interfaces.

The default method list is automatically applied to all interfaces, except those that have a named method list explicitly defined. To disable AAA, use the no aaa new-model command in global configuration mode. AAA authorization limits the services available to a user.

When AAA authorization is enabled, the wireless device uses information retrieved from the user profile, which is located either in the local user database or on the security server, to configure the user session. The user is granted access to a requested service only if the information in the user profile allows it.

Because you may lose data, use only the service-module wlan-ap0 reset command to recover from a shutdown or failed state. At the confirmation prompt, press Enter to confirm the action, or enter n to cancel. When running in autonomous mode, the reload command saves the configuration before rebooting.

If the attempt is unsuccessful, the following message displays:. If you enter the service-module wlan-ap0 reload command, you will be prompted with the following message:. This section provides commands for monitoring hardware on the router for displaying wireless device statistics and wireless device status. Use the service-module wlan-ap0 statistics command in privileged EXEC mode to display wireless device statistics.

The following is sample output for the command:. Use the service-module wlan-ap0 status command in privileged EXEC mode to display the status of the wireless device and its configuration information. You can manage the system time and date on the wireless device automatically, by using the Simple Network Time Protocol SNTP , or manually, by setting the time and date on the wireless device. SNTP typically provides time within milliseconds of the accurate time, but it does not provide the complex filtering and statistical mechanisms of NTP.

When multiple sources are sending NTP packets, the server with the best stratum is selected. If multiple servers are at the same stratum, a configured server is preferred over a broadcast server. If multiple servers pass both tests, the first one to send a time packet is selected. SNTP chooses a new server only if the client stops receiving packets from the currently selected server, or if according to the above criteria SNTP discovers a better server.

SNTP is disabled by default. To enable SNTP on the access point, use one or both of the commands listed in Table 1 in global configuration mode. Enter the sntp server command once for each NTP server. If you enter both the sntp server command and the sntp broadcast client command, the access point accepts time from a broadcast server but prefers time from a configured server, if the strata are equal.

If no other source of time is available, you can manually configure the time and date after restsarting the system. The time remains accurate until the next system restart. We recommend that you use manual configuration only as a last resort.

If you have an outside source to which the wireless device can synchronize, you do not need to manually set the system clock. The first part of the clock summer-time global configuration command specifies when summer time begins, and the second part specifies when it ends.

All times are relative to the local time zone. The start time is relative to standard time. The end time is relative to summer time. If the starting month is after the ending month, the system assumes that you are in the southern hemisphere. Summer time is disabled by default. If you specify clock summer-time zone recurring without parameters, the summer time rules default to the United States rules. Optional Sets summer time if there is no recurring pattern.

Configures summer time to start on the first date and end on the second date. This example shows how to specify that summer time starts on the first Sunday in April at and ends on the last Sunday in October at This example shows how to set summer time to start on October 12, , at , and end on April 26, , at Configure the system name on the wireless device to identify it.

By default, the system name and prompt are ap. If you have not configured a system prompt, the first 20 characters of the system name are used as the system prompt. The prompt is updated whenever the system name changes, unless you manually configure the prompt by using the prompt command in global configuration mode. When you configure DNS on the wireless device, you can substitute the hostname for the IP address with all IP commands, such as ping , telnet , connect , and related Telnet support operations.

IP defines a hierarchical naming scheme that allows a device to be identified by its location or domain. Domain names are pieced together with periods. For example, Cisco Systems, Inc. To keep track of domain names, IP has defined the concept of a domain name server, which holds a cache or database of names mapped to IP addresses.

To map domain names to IP addresses, you must first identify the hostnames, specify the name server that is present on your network, and enable the DNS. Table 1 describes the default DNS configuration. Defines a default domain name that the software uses to complete unqualified hostnames names without a dotted-decimal domain name. At boot time, no domain name is configured. You can specify up to six name servers. Separate server addresses with a space.

The first server specified is the primary server. The wireless device sends DNS queries to the primary server first. If that query fails, the backup servers are queried. Optional Enables DNS-based hostname-to-address translation on the wireless device. This feature is enabled by default. If your network devices require connectivity with devices in networks for which you do not control name assignment, you can dynamically assign device names that uniquely identify your devices by using the global Internet naming scheme DNS.

If you configure a hostname that contains no periods. The default domain name is the value set by the ip domain-name command in global configuration mode. If there is a period. To remove a domain name, use the no ip domain-name name command in global configuration mode. To remove a name server address, use the no ip name-server server-address command in global configuration mode. To disable DNS on the wireless device, use the no ip domain-lookup command in global configuration mode.

You can configure a message-of-the-day MOTD and a login banner. By default the MOTD and login banners are not configured. The MOTD banner appears on all connected terminals at login and is useful for sending messages that affect all network users such as impending system shutdowns. The login banner also appears on all connected terminals. It appears after the MOTD banner and appears before the login prompts appear. You can create a single-line or multiline message banner that appears on the screen when someone logs into the wireless device.

The following example shows how to configure a MOTD banner for the wireless device. The pound sign is used as the beginning and ending delimiter:. You can configure a login banner to appear on all connected terminals. This banner appears after the MOTD banner and appears before the login prompt appears.

The Ethernet speed and duplex are set to auto by default. You can enable the wireless device for wireless network management. Possible statuses are not authenticated, authentication in progress, authentication fail, authenticated, and security keys setup. The wireless device then handles authentication and authorization. No accounting is available in this configuration. Sets the login authentication to use the local username database. The default keyword applies the local user database authentication to all interfaces.

Note To disable AAA, use the no aaa new-model command in global configuration mode. The authentication cache and profile feature allows the access point to cache the authentication and authorization responses for a user so that subsequent authentication and authorization requests do not need to be sent to the AAA server. Excludes the wireless device IP address from the range of addresses that the wireless device assigns.

Assigns the subnet number for the address pool. The wireless device assigns IP addresses within this subnet. Optional Assigns a subnet mask for the address pool, or specifies the number of bits that compose the address prefix. The prefix is an alternative way of assigning the network mask.

The following example shows how to configure the wireless device as a DHCP server, how to exclude a range of IP address, and how to assign a default router:. The following sections describe commands you can use to monitor and maintain the DHCP server access point:. Enter the wireless device IP address to show conflicts recorded by the wireless device.

Deletes an automatic address binding from the DHCP database. Specifying the address argument clears the automatic binding for a specific client IP address. Clears an address conflict from the DHCP database. Specifying the address argument clears the conflict for a specific IP address. SSH is a protocol that provides a secure, remote connection to a Layer 2 or Layer 3 device.

This software release supports both SSH versions. If you do not specify the version number, the access point defaults to version 2. SSH provides more security for remote connections than Telnet by providing strong encryption when a device is authenticated.

The client supports the following user authentication methods:. Before configuring SSH, download the cryptographic software image from Cisco. For more information, see release notes for this release. You can configure the wireless device to maintain an address resolution protocol ARP cache for associated client devices.

ARP caching is disabled by default. Instead of forwarding ARP requests to client devices, the wireless device responds to requests on behalf of associated client devices. When ARP caching is disabled, the wireless device forwards all ARP requests through the radio port to associated clients. The client that receives the ARP request responds. When ARP caching is enabled, the wireless device responds to ARP requests for associated clients and does not forward requests to clients.

When the wireless device receives an ARP request for an IP address not in the cache, the wireless device drops the request and does not forward it. In its beacon, the wireless device includes an information element to alert client devices that they can safely ignore broadcast messages to increase battery life.

When a non-Cisco client device is associated to an access point and is not passing data, the wireless device might not know the client IP address. When ARP caching is optional, the wireless device responds on behalf of clients with IP addresses known to the wireless device but forwards out of its radio port any ARP requests addressed to unknown clients. When the wireless device learns the IP addresses for all associated clients, it drops ARP requests not directed to its associated clients.

To configure the wireless device to maintain an ARP cache for associated clients, follow these steps, beginning in privileged EXEC mode:. Optional Use the optional keyword to enable ARP caching only for the client devices whose IP addresses are known to the wireless device.

This feature modifies the way that point-to-multipoint bridging can be configured to operate on multiple VLANs with the ability to control traffic rates on each VLAN. In a typical scenario, multiple-VLAN support permits users to set up point-to-multipoint bridge links with remote sites, with each remote site on a separate VLAN.

This configuration provides the capability for separating and controlling traffic to each site. Rate limiting ensures that no remote site consumes more than a specified amount of the entire link bandwidth. Only uplink traffic can be controlled by using the Fast Ethernet ingress ports of non-root bridges. Using the class-based policing feature, you can specify the rate limit and apply it to the ingress of the Ethernet interface of a non-root bridge.

Applying the rate at the ingress of the Ethernet interface ensures that all incoming Ethernet packets conform to the configured rate. You can change the address for accessing the web-based interface. See Configuring Access to the Web-based Interface. Connect to the interface from a device within the LAN containing the router. The device must be within the subnet configured for accessing the router. The default subnet mask is The page is automatically refreshed.

The page shows the IP address and subnet mask used to access the web-based interface. You can enter a new IP address and subnet mask for accessing the web-based interface. The default values are:. Radio channels. By default, the router sets the channel automatically. You can select a specific channel. The channel options depend on the geographic region. Packets per second PPS threshold. If an access point transmits a packet larger than the threshold, this will trigger the CTS protection mode.

The interval is specified as number of beacons. Upper limit for the maximum number of clients that can connect to an AP. In the left pane, click Management to open the Access Control - Passwords page for configuring the administrative password.

The user name must be admin. You can follow the instructions on this page to change the password. The default password is admin. The file is saved locally on the workstation being used to access the GUI. Restoring the default configuration restarts the router, interrupting any current connections. Similarly to Cisco IOS, the prompt indicates the command mode. For example, using the configure terminal command to enter global configuration mode changes the prompt to:. To exit from a specific mode, use the exit command.

Entering a question mark? This feature provides a simple access to information about commands and relevant command options. In interface configuration mode, entering? In SSID configuration mode, entering encryption mode wep?

Three arguments current-key , encryption-strength , and key may be entered for the command. In this example, entering the command without additional arguments enables WEP encryption. To change the IP address of the bridge interface used to access the web-based interface, perform these steps. The SSID may be up to 32 characters. The ap config-ssid prompt indicates SSID configuration mode.

To enable or disable client isolation for a specific SSID, follow these steps from global configuration mode:. The no form of the command disables client isolation for the specified SSID. To set the global maximum number of clients that can connect to an AP, follow these steps from global configuration mode:. To configure the maximum number of clients, follow these steps from global configuration mode:. Use the authentication command to configure authentication options for a specific SSID.

By default, network authentication is Open. Configures authentication options for the SSID specified in the previous step. Table 1 describes options for the authentication command. The default authentication option is open. Table 1 describes options for the authentication command:. WPA auth-port port-number. WPA key encryption-key. WPA rekey-interval seconds. WPA server server-IP-address. WPA2 auth-port port-number. WPA2 key encryption-key.

The no form of the command disables preauthentication. WPA2 reauth-interval seconds. WPA2 rekey-interval seconds. WPA2 server server-IP-address. To configure the encryption options for a specific SSID, follow these steps from global configuration mode:. Configures encryption options for the SSID specified in the previous step.

Table 1 describes options for the encryption mode command. Table 1 describes options for the encryption mode command:. Enables WEP encryption. The no form of the command disables WEP encryption. It is possible to configure four different network keys. This command determines which key to use currently. To add a MAC address to the access-list or to remove a MAC address from the access-list, follow these steps from global configuration mode :.

To select the MAC address access list mode, follow these steps from global configuration mode:. Configures a specific radio channel manually or selects automatic scanning; and configures the automatic scanning timer. Table 1 describes the rate options for Mbps-rate specifies a rate in Mbps. The following values are possible:. To set the basic transmission rate, which is the data rate that wireless clients should support, follow these steps from global configuration mode:.

To set the fragmentation threshold, which is the maximum packet size bytes before data is fragmented, follow these steps from global configuration mode:. To set the request-to-send RTS threshold, follow these steps from global configuration mode:.

Default value is Configures the DTIM interval that is included in beacon frames to inform clients of when next to expect buffered data from the AP. To set the radio transmit power for WLAN, follow these steps from global configuration mode:. Use the show ap-config command to display the current CLI values and keywords. Use the show controllers Dot11Radio 0 command to display the current channel and power information. Use the show dot11 associations command to display the current associated clients.

Details include the IP address of the router. After changing the IP address used for accessing the router, this command can be used to confirm the change. Use the show interfaces Dot11Radio 0 command to display Dot11Radio 0 interface information.

Use the show ip interface brief command to display brief details for all interfaces. In the output, the Method column indicates whether the interface was user-configured or configured by DHCP. Use the show processes cpu command to display CPU utilization statistics. Use the show memory summary command to display details of current memory usage.

Use the ping command to test connectivity with a specific address. Entering the ping command with an address specified indicates the round trip time in milliseconds for several transmissions of a small datagram. Entering the ping command without specifying an address starts the interactive mode of the command, enabling you to enter the target address, the transmission repeat count, and the datagram size.

Use the password command to change the administrator password. Changes the administrator password. Note that the command requires entering the new password twice to confirm the exact text of the new password. Use the terminal length command to configure the number of lines displayed on the screen. The following example shows how to configure the cellular interface to be used as primary and is configured as the default route:.

The following example shows how to configure the dialer-watch without external dialer interface. The bold text is used to indicate important commands that are specific to the dialer-watch:. The following example shows how to configure the dialer-persistent with external dialer interface. The bold text is used to indicate important commands that are specific to the dialer-persistent:. The following example shows how to configure the static IP address when a GRE tunnel interface is configured with ip address unnumbered cellular interface:.

Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. Log in to Save Content. PDF - Complete Book 6. Updated: May 3, Chapter: Configuring Wireless Devices. Avoid using the CLI and the web-browser tools concurrently. If you configure the wireless device using the CLI, the web-browser interface may display an inaccurate interpretation of the configuration.

To upgrade the autonomous software to Cisco Unified software on the embedded wireless device, see the Upgrading to Cisco Unified Software for instructions. Step 1 and 2 are not required in releases prior to Release Identifies a specific line for configuration and enters the line configuration collection mode. Assigns the device or interface as the designated-gateway for the domain. Step 3. Step 4. Specifies the interface IP address and subnet mask. Step 5. Specifies that the internal interface connection will remain open.

Exits interface configuration mode and returns to global configuration mode. To create a Cisco IOS software alias for the console to session into the wireless device, enter the alias exec dot11radio service-module wlan-ap 0 session command at the EXEC prompt. If you are configuring the wireless device for the first time, you must start a configuration session between the access point and the router before you attempt to configure the basic wireless settings.

See the Starting a Wireless Configuration Session. To upgrade to Unified mode from the Autonomous mode, see Upgrading to Cisco Unified Software for upgrade instructions. No security. Static WEP key. EAP 1 authentication. WPA 9. If the service-module wlan-ap 0 bootimage unified command does not work successfully, check whether the software license is still eligible. Wireless Overview. Wireless LAN Overview. Configuring the Radio.

Configuring Radio Settings. Authentication Types for Wireless Devices. This document describes the authentication types that are configured on the access point. Using the Access Point as a Local Authenticator. Cipher Suites and WEP. Hot Standby Access Points.

This document describes how to configure your wireless device as a hot standby unit. Service Set Identifiers. Administering the Access Point. Administering the Wireless Device. Quality of Service. Regulatory Domains and Channels. System Message Logging. You must create a service set identifier SSID before you can enable the radio interface.

Step 1.

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Any switch port may be configured as a trunking port to connect to other Cisco Ethernet switches.

Anydesk allow multiple sessions Finally, specify the line configuration use line 3 always and define default modem chat script. Use the second-dot1q keyword and the inner vlan-id argument to specify the VLAN tag. Enter exit to exit global configuration mode:. In addition to the physical node addresses, the IP protocol implements a system of logical host addresses called IP addresses. You can enable the wireless device for wireless network management. Enter the world-mode roaming option to place the access point in a continuous world mode configuration. Log in to Save Content.
How to share files via teamviewer After the country code, you must cisco 800 software indoor, outdoor, or both to indicate the placement of the wireless device. Enables local password checking at login time. Specifies the subinterface and enters the subinterface configuration mode. Allocation occurs in numeric order, and multiple pools of contiguous address blocks can be defined. ARPing for 1. Use the show ethernet loopback active command to display the summary of the active loopback sessions on a subinterface:. Using the class-based policing feature, you can specify the rate limit and apply it to the ingress of the Ethernet interface of a non-root bridge.
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Anydesk on headless server Length of time between beacon transmissions. Enable or Disables WMM. Sets the RTS threshold. Data rate that wireless clients should support. The no form of the command removes a MAC address from the access list.
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Anydesk remote desktop free download The no form of the command disables WEP encryption. If a successor for a particular destination does splashtop remote over vpn exist but neighbors advertise the destination, the router must recompute a route. Each VLAN is mapped to a context. You must create a service set identifier SSID before you can enable the radio interface. WMM No Acknowledgement. When multiple sources are sending NTP packets, the server with the best stratum is selected. To prevent unauthorized access to the wireless device, configure one of these security features:.
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Use the show platform command to display the current bootup mode for the router. The following sections show sample outputs when the button is not pushed and when the button is pushed. To perform image recovery, WLAN will go into the boot loader so that the user can download the image from the bootloader prompt. After the router boots up, the desired WAN interface can be selected using the wan mode command. Use the wan mode dsl ethernet command to switch from DSL to Ethernet interfaces or vice versa.

Exits configuration mode and returns to it would take the router back to privileged EXEC mode. Use the show running-config command to view the initial configuration, as shown in the following example for a Cisco VAE router. Access is provided through the VLAN. You can also assign the interfaces to other VLANs. The Cisco , Cisco , and Cisco series wireless routers have an integrated The router can then act as an access point in the local infrastructure. The loopback interface acts as a placeholder for the static IP address and provides default routing information.

Perform these steps to configure a loopback interface, beginning in global configuration mode:. Exits configuration mode for the loopback interface and returns to global configuration mode. The loopback interface in this sample configuration is used to support Network Address Translation NAT on the virtual-template interface.

This configuration example shows the loopback interface configured on the Fast Ethernet interface with an IP address of The loopback interface points back to virtual-template1, which has a negotiated IP address. To verify that you have properly configured the loopback interface, enter the show interface loopback command.

You should see verification output similar to the following example. Static routes provide fixed routing paths through the network. They are manually configured on the router. If the network topology changes, the static route must be updated with a new route. Static routes are private routes unless they are redistributed by a routing protocol. In the following configuration example, the static route sends out all IP packets with a destination IP address of Specifically, the packets are sent to the configured PVC.

In dynamic routing, the network protocol adjusts the path automatically, based on network traffic or topology. Changes in dynamic routes are shared with other routers in the network. You can configure either of these routing protocols on your router. To configure the RIP routing protocol on the router, perform these steps, beginning in global configuration mode:.

Specifies a list of networks on which RIP is to be applied, using the address of the network of each directly connected network. Disables automatic summarization of subnet routes into network-level routes. This allows subprefix routing information to pass across classfull network boundaries.

To see this configuration, use the show running-config command from privileged EXEC mode. To see this configuration, use the show running-config command, beginning in privileged EXEC mode. Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. Log in to Save Content. PDF - Complete Book 6. Updated: May 3, Chapter: Basic Router Configuration. Individual router models may not support every feature described in this guide.

Features that are not supported by a particular router are indicated whenever possible. LAN Ports. Cisco , Cisco , and Cisco series. WAN Ports. Cisco , W, G, GW. Cisco , Gigabit Ethernet WAN. Cisco Series Router. Step 1. Enters line configuration mode and specifies the type of line. This example specifies a console terminal for access.

Step 2. Specifies a unique password for the console terminal line. Step 3. Enables password checking at terminal session login. Step 4. Step 5. Specifies a virtual terminal for remote console access. Step 6. Specifies a unique password for the virtual terminal line. Enables password checking at the virtual terminal session login. Exits line configuration mode, and returns to privileged EXEC mode. Enters global configuration mode when using the console port.

Specifies an encrypted password to prevent unauthorized access to the router. Disables the router from translating unfamiliar words typos into IP addresses. Sets the IP address and subnet mask for the specified Fast Ethernet interface. Specifies an SFP physical connection. OR Specifies an RJ physical connection. Sets the IP address and subnet mask for the specified Gigabit Ethernet interface. Enters the configuration mode for a V. Sets the IP address and subnet mask for the specified V.

Sets the encapsulation method to point-to-point protocol PPP for the serial interface. Specifies that dial-on-demand routing DDR is supported. Specifies the string telephone number to be used when placing a call from the interface.

Configures the interface to belong to a specific dialing access group. Exits configuration mode for the V. Enters controller configuration mode and the controller number. Sets the IP address and subnet mask for the interface. Exits configuration mode and returns to global configuration mode. On Cisco IOS versions Enables privileged EXEC mode. Enter your password if prompted. Configures the operating mode. The default is auto and is recommended. Exits the configuration mode and enters EXEC mode.

Enables the configuration changes to the ATM interface. Enters configuration mode for the Ethernet interface 0. Enables the configuration changes to the ip address and subnet mask. Enables the configuration changes to the IP address and subnet mask. Enters configuration mode for the VDSL controller. Enables SRA mode. Use the no form of the command to disable SRA. Because of this capacity limitation, when the entire log collection exceeds 8MB, the log capture is automatically terminated.

No service available and no RSSI detected. Fast 16 Hz blinking green. Slow 1 Hz blinking green. To provision your modem, you must have an active wireless account with a service provider. Displays information about the carrier network, cell site, and available service. Displays the cellular modem hardware information. Displays the current active connection state and data statistics.

Shows the radio signal strength. Shows information about the modem data profiles created. Shows the security information for the modem, such as SIM and modem lock status. Number for the profile that you are creating. You can create up to 16 profiles.

Access point name. You must get this information from your service provider. Username provided by your service provider. Password provided by your service provider. You need to obtain the phone number for use with this command from your carrier. CDMA does not require a username or password. Enters global configuration mode from the terminal. When the cellular interface requires a static IP address, the address may be configured as ip address negotiated.

Enables DDR and configures the specified serial interface for in-band dialing. Specifies the duration of idle time, in seconds, after which a line is disconnected. Specifies the number or string to dial. Use the name of the chat script here. Specifies the number of the dialer access group to which a specific interface belongs. Creates a dialer list for traffic of interest and permits access to an entire protocol.

Specifies the line configuration mode. You can configure the wireless device to set the data rates automatically to optimize either the range or the throughput. The range setting allows the access point to extend the coverage area by compromising on the data rate. Therefore, if you have a client that cannot connect to the access point although other clients can, the client might not be within the coverage area of the access point. In such a case, using the range option will help extend the coverage area, and the client may be able to connect to the access point.

Typically, the trade-off is between throughput and range. When the signal degrades possibly due to distance from the access point , the rates renegotiate in order to maintain the link but at a lower data rate. A link that is configured for a higher throughput simply drops when the signal degrades enough that it no longer sustains a configured high data rate, or the link roams to another access point with sufficient coverage, if one is available.

The balance between the two throughput vs. When you enter throughput for the data rate setting, the wireless device sets all four data rates to basic. Sets each data rate to basic or enabled, or enters range to optimize range or enters throughput to optimize throughput.

Enter 1. Enter 6. Enter basic Optional On the This setting disables However, it prevents On the These rate settings allow both On the 5-GHz radio, the default option sets rates 6. This example shows how to configure data rates basic MCS is used in the wireless device MCS is an important setting because it provides for potentially greater throughput.

High-throughput data rates are a function of MCS, bandwidth, and guard interval. The Table 1 shows potential data rated based on MCS, guard interval, and channel width. Radio transmit power is based on the type of radio or radios installed in your access point and the regulatory domain in which it operates.

To set the transmit power on access point radios, follow these steps, beginning in privileged EXEC mode:. Sets the transmit power for the 2. You can also limit the power level on client devices that associate to the wireless device.

When a client device associates to the wireless device, the wireless device sends the maximum power level setting to the client. To specify a maximum allowed power setting on all client devices that associate to the wireless device, follow these steps, beginning in privileged EXEC mode:. Sets the maximum power level allowed on client devices that associate to the wireless device. Use the no form of the power client command to disable the maximum power level for associated clients.

The default channel setting for the wireless device radios is least congested. At startup, the wireless device scans for and selects the least-congested channel. For the most consistent performance after a site survey, however, we recommend that you assign a static channel setting for each access point. The channel settings on the wireless device correspond to the frequencies available in your regulatory domain.

See the access point hardware installation guide for the frequencies allowed in your domain. Each 2. Because the bands for channels 1, 6, and 11 do not overlap, you can set up multiple access points in the same vicinity without causing interference. The 5-GHz radio operates on 8 channels from to MHz, up to 27 channels from to MHz depending on regulatory domain.

Each channel covers 20 MHz, and the bands for the channels overlap slightly. For best performance, use channels that are not adjacent use channels 44 and 46, for example for radios that are close to each other. One of the MHz channels is called the control channel. Legacy clients and MHz high-throughput clients use the control channel. Only beacons can be sent on this channel. The other MHz channel is called the extension channel.

The MHz stations may use this channel and the control channel simultaneously. A MHz channel is specified as a channel and extension, such as 1,1. In this example, the control channel is channel 1 and the extension channel is above it. To set the wireless device channel width, follow these steps, beginning in privileged EXEC mode:.

Sets the default channel for the wireless device radio. To search for the least-congested channel on startup, enter least-congested. You can configure the wireless device to support When you enable world mode, the wireless device adds channel carrier set information to its beacon.

Client devices with world mode enabled receive the carrier set information and adjust their settings automatically. For example, a client device used primarily in Japan could rely on world mode to adjust its channel and power settings automatically when it travels to Italy and joins a network there.

Cisco client devices detect whether the wireless device is using You can also configure world mode to be always on. In this configuration, the access point essentially roams between countries and changes its settings as required. World mode is disabled by default. Use the no form of the world-mode command to disable world mode. The radio preamble sometimes called a header is a section of data at the head of a packet that contains information that the wireless device and client devices need when sending and receiving packets.

You can set the radio preamble to long or short:. You can select the antenna that the wireless device uses to receive and transmit data. There are four options for both the receive antenna and the transmit antenna:. To select the antennas that the wireless device uses to receive and transmit data, follow these steps, beginning in privileged EXEC mode:. By default, the wireless device uses Cisco Aironet Aironet extensions must be enabled to support these features:.

Disabling Aironet extensions disables the features listed above, but it sometimes improves the ability of non-Cisco client devices to associate to the wireless device. Aironet extensions are enabled by default. Use the dot11 extension aironet command to enable Aironet extensions if they are disabled. When the wireless device receives data packets that are not These are the two transformation methods:. For information on how to configure the ethernet encapsulation transformation method, see the following section:.

To configure the encapsulation transformation method, follow these steps, beginning in privileged EXEC mode:. Sets the encapsulation transformation method to RFC snap or Public Secure Packet Forwarding PSPF prevents client devices that are associated to an access point from inadvertently sharing files or communicating with other client devices that are associated to the access point.

This feature is useful for public wireless networks like those installed in airports or on college campuses. For a detailed explanation of bridge groups and instructions for implementing them, see the following link:. PSPF is disabled by default. Use the no form of the bridge group command to disable PSPF. To prevent communication between client devices that are associated to different access points on your wireless LAN, you must set up protected ports on the switch to which the wireless devices are connected.

To define a port on your switch as a protected port, follow these steps, beginning in privileged EXEC mode:. To disable protected port, use the no switchport protected command. Click this link to browse to that guide:. The beacon period is the amount of time between access point beacons in kilomicroseconds Kmicrosecs. One Kmicrosec equals 1, microseconds. The data beacon rate, always a multiple of the beacon period, determines how often the beacon contains a delivery traffic indication message DTIM.

The DTIM tells power-save client devices that a packet is waiting for them. For example, if the beacon period is set at , its default setting, and if the data beacon rate is set at 2, its default setting, then the wireless device sends a beacon containing a DTIM every Kmicrosecs. The request to send RTS threshold determines the packet size at which the wireless device issues an RTS before sending the packet.

A low RTS threshold setting can be useful in areas where many client devices are associating with the wireless device, or in areas where the clients are far apart and can detect only the wireless device and not detect each other. You can enter a setting ranging from 0 to bytes. The maximum RTS retries is the maximum number of times the wireless device issues an RTS before stopping the attempt to send the packet over the radio.

Enter a value from 1 to The default RTS threshold is for all access points and bridges, and the default maximum RTS retries setting is Use the no form of the rts command to reset the RTS settings to defaults. The maximum data retries setting determines the number of attempts that the wireless device makes to send a packet before it drops the packet.

The default setting is To configure the maximum data retries, follow these steps, beginning in privileged EXEC mode:. The fragmentation threshold determines the size at which packets are fragmented sent as several pieces instead of as one block. Use a low setting in areas where communication is poor or where there is a great deal of radio interference. The default setting is bytes. To configure the fragmentation threshold, follow these steps, beginning in privileged EXEC mode:.

You can increase throughput on the Reducing the slot time from the standard 20 microseconds to the 9-microsecond short slot time decreases the overall backoff, which increases throughput. Backoff, which is a multiple of the slot time, is the random length of time that a station waits before sending a packet on the LAN. Many When you enable short slot time, the wireless device uses the short slot time only when all clients associated to the Short slot time is supported only on the Short slot time is disabled by default.

You can perform a carrier busy test to check the radio activity on wireless channels. During the carrier busy test, the wireless device drops all associations with wireless networking devices for 4 seconds while it conducts the carrier test and then displays the test results. Use the show dot11 carrier busy command to redisplay the carrier busy test results. You can improve the quality of VoIP packet handling per radio on access points by enhancing The default value for maximum retries is 3 for the Low Latency setting.

This value indicates how many times the access point will try to retrieve a lost packet before discarding it. This section provides information about performing the following tasks to secure access to the wireless device:. This command disables password recovery. The mode button is enabled by default.

You can check the status of the mode button by executing the show boot or show boot mode-button command in privileged EXEC mode. The status does not appear in the running configuration. The following example shows typical responses to the show boot and show boot mode-button commands:. You can prevent unauthorized users from reconfiguring the wireless device and viewing configuration information.

Typically, you want the network administrators to have access to the wireless device while restricting access to users who connect through a terminal or workstation from within the local network. To prevent unauthorized access to the wireless device, configure one of these security features:. A simple way of providing terminal access control in your network is to use passwords and assign privilege levels.

Password protection restricts access to a network or network device. Privilege levels define what commands users can issue after they have logged in to a network device. This section describes how to control access to the configuration file and privileged EXEC commands. It contains the following configuration information:. Table 1 shows the default password and privilege level configuration. Default password is Cisco.

The default is level 15 privileged EXEC level. The password is encrypted in the configuration file. Default enable password is Cisco. The password is encrypted before it is written to the configuration file. To set or change a static enable password, follow these steps, beginning in privileged EXEC mode:. The enable password is not encrypted and can be read in the wireless device configuration file. The following example shows how to change the enable password to l1u2c3k4y5. The password is not encrypted and provides access to level 15 standard privileged EXEC mode access :.

To configure encryption for enable and enable secret passwords, follow these steps, beginning in privileged EXEC mode:. Optional Encrypts the password when the password is defined or when the configuration is written. Configure username and password pairs, which are locally stored on the wireless device. These pairs are assigned to lines or interfaces, and they authenticate each user before the user can access the wireless device. If you have defined privilege levels, assign a specific privilege level with associated rights and privileges to each username and password pair.

To establish a username-based authentication system that requests a login username and a password, follow these steps, beginning in privileged EXEC mode:. Enables local password checking at login time. Authentication is based on the username specified in Step 2. You can configure up to 16 hierarchical levels of commands for each mode. By configuring multiple passwords, you can allow different sets of users to have access to specified commands. For example, for many users to have access to the clear line command, you can assign it level 2 security and distribute the level 2 password fairly widely.

For more restricted access to the configure command, you can assign it level 3 security and distribute that password to a more restricted group of users. To set the privilege level for a command mode, follow these steps, beginning in privileged EXEC mode:. The show running-config command displays the password and access level configuration. The show privilege command displays the privilege level configuration. To log in to a specified privilege level or to exit to a specified privilege level, follow these steps, beginning in privileged EXEC mode:.

RADIUS provides detailed accounting information and flexible administrative control over authentication and authorization processes. To configure AAA authentication, define a named list of authentication methods and then apply the list to various interfaces.

The method list defines the types of authentication to be performed and the sequence in which they are performed; it must be applied to a specific interface before any defined authentication methods are performed. The only exception is the default method list which is named default.

The default method list is automatically applied to all interfaces except those that have a named method list explicitly defined. A method list describes the sequence and authentication methods to be used to authenticate a user.

You can designate one or more security protocols for authentication, thus ensuring a backup system for authentication in case the initial method fails. The software uses the first method listed to authenticate users. If that method fails to respond, the software selects the next authentication method in the method list. This process continues until there is successful communication with a listed authentication method or until all defined methods are exhausted.

If authentication fails at any point in this cycle—that is, the security server or local username database responds by denying the user access—the authentication process stops, and no other authentication methods are attempted. To configure login authentication, follow these steps, beginning in privileged EXEC mode. This procedure is required.

Enters line configuration mode, and configures the lines to which the authentication list applies. You can configure the wireless device to use AAA server groups to group existing server hosts for authentication. Select a subset of the configured server hosts and use them for a particular service. The server group is used with a global server-host list, which lists the IP addresses of the selected server hosts. Server groups can also include multiple host entries for the same server if each entry has a unique identifier the combination of the IP address and UDP port number , allowing different ports to be individually defined as RADIUS hosts providing a specific AAA service.

If you configure two different host entries on the same RADIUS server for the same service such as accounting , the second configured host entry acts as a failover backup to the first one. You use the server group server configuration command to associate a particular server with a defined group server.

You can either identify the server by its IP address or identify multiple host instances or entries by using the optional auth-port and acct-port keywords. To configure the wireless device to recognize more than one host entry that is associated with a single IP address, enter this command as many times as necessary, making sure that each UDP port number is different.

The wireless device software searches for hosts in the order in which you specify them. In the following is example, the wireless device is configured to recognize two different RADIUS group servers group1 and group2. The second host entry acts as a failover backup to the first entry.

AAA authorization limits the services that are available to a user. The user is granted access to a requested service only if the user profile allows it. The exec keyword might return user profile information such as autocommand information. To configure AAA authentication, you define a named list of authentication methods and then apply the list to various interfaces. The default method list is automatically applied to all interfaces, except those that have a named method list explicitly defined.

To disable AAA, use the no aaa new-model command in global configuration mode. AAA authorization limits the services available to a user. When AAA authorization is enabled, the wireless device uses information retrieved from the user profile, which is located either in the local user database or on the security server, to configure the user session.

The user is granted access to a requested service only if the information in the user profile allows it. Because you may lose data, use only the service-module wlan-ap0 reset command to recover from a shutdown or failed state. At the confirmation prompt, press Enter to confirm the action, or enter n to cancel.

When running in autonomous mode, the reload command saves the configuration before rebooting. If the attempt is unsuccessful, the following message displays:. If you enter the service-module wlan-ap0 reload command, you will be prompted with the following message:. This section provides commands for monitoring hardware on the router for displaying wireless device statistics and wireless device status.

Use the service-module wlan-ap0 statistics command in privileged EXEC mode to display wireless device statistics. The following is sample output for the command:. Use the service-module wlan-ap0 status command in privileged EXEC mode to display the status of the wireless device and its configuration information. You can manage the system time and date on the wireless device automatically, by using the Simple Network Time Protocol SNTP , or manually, by setting the time and date on the wireless device.

SNTP typically provides time within milliseconds of the accurate time, but it does not provide the complex filtering and statistical mechanisms of NTP. When multiple sources are sending NTP packets, the server with the best stratum is selected.

If multiple servers are at the same stratum, a configured server is preferred over a broadcast server. If multiple servers pass both tests, the first one to send a time packet is selected. SNTP chooses a new server only if the client stops receiving packets from the currently selected server, or if according to the above criteria SNTP discovers a better server.

SNTP is disabled by default. To enable SNTP on the access point, use one or both of the commands listed in Table 1 in global configuration mode. Enter the sntp server command once for each NTP server. If you enter both the sntp server command and the sntp broadcast client command, the access point accepts time from a broadcast server but prefers time from a configured server, if the strata are equal. If no other source of time is available, you can manually configure the time and date after restsarting the system.

The time remains accurate until the next system restart. We recommend that you use manual configuration only as a last resort. If you have an outside source to which the wireless device can synchronize, you do not need to manually set the system clock. The first part of the clock summer-time global configuration command specifies when summer time begins, and the second part specifies when it ends.

All times are relative to the local time zone. The start time is relative to standard time. The end time is relative to summer time. If the starting month is after the ending month, the system assumes that you are in the southern hemisphere. Summer time is disabled by default. If you specify clock summer-time zone recurring without parameters, the summer time rules default to the United States rules. Optional Sets summer time if there is no recurring pattern. Configures summer time to start on the first date and end on the second date.

This example shows how to specify that summer time starts on the first Sunday in April at and ends on the last Sunday in October at This example shows how to set summer time to start on October 12, , at , and end on April 26, , at Configure the system name on the wireless device to identify it. By default, the system name and prompt are ap. If you have not configured a system prompt, the first 20 characters of the system name are used as the system prompt.

The prompt is updated whenever the system name changes, unless you manually configure the prompt by using the prompt command in global configuration mode. When you configure DNS on the wireless device, you can substitute the hostname for the IP address with all IP commands, such as ping , telnet , connect , and related Telnet support operations. IP defines a hierarchical naming scheme that allows a device to be identified by its location or domain.

Domain names are pieced together with periods. For example, Cisco Systems, Inc. To keep track of domain names, IP has defined the concept of a domain name server, which holds a cache or database of names mapped to IP addresses. To map domain names to IP addresses, you must first identify the hostnames, specify the name server that is present on your network, and enable the DNS.

Table 1 describes the default DNS configuration. Defines a default domain name that the software uses to complete unqualified hostnames names without a dotted-decimal domain name. At boot time, no domain name is configured. You can specify up to six name servers. Separate server addresses with a space. The first server specified is the primary server.

The wireless device sends DNS queries to the primary server first. If that query fails, the backup servers are queried. Optional Enables DNS-based hostname-to-address translation on the wireless device. This feature is enabled by default. If your network devices require connectivity with devices in networks for which you do not control name assignment, you can dynamically assign device names that uniquely identify your devices by using the global Internet naming scheme DNS.

If you configure a hostname that contains no periods. The default domain name is the value set by the ip domain-name command in global configuration mode. If there is a period. To remove a domain name, use the no ip domain-name name command in global configuration mode. To remove a name server address, use the no ip name-server server-address command in global configuration mode. To disable DNS on the wireless device, use the no ip domain-lookup command in global configuration mode.

You can configure a message-of-the-day MOTD and a login banner. By default the MOTD and login banners are not configured. The MOTD banner appears on all connected terminals at login and is useful for sending messages that affect all network users such as impending system shutdowns. The login banner also appears on all connected terminals. It appears after the MOTD banner and appears before the login prompts appear. You can create a single-line or multiline message banner that appears on the screen when someone logs into the wireless device.

The following example shows how to configure a MOTD banner for the wireless device. The pound sign is used as the beginning and ending delimiter:. You can configure a login banner to appear on all connected terminals. This banner appears after the MOTD banner and appears before the login prompt appears. The Ethernet speed and duplex are set to auto by default. You can enable the wireless device for wireless network management. Possible statuses are not authenticated, authentication in progress, authentication fail, authenticated, and security keys setup.

The wireless device then handles authentication and authorization. No accounting is available in this configuration. Sets the login authentication to use the local username database. The default keyword applies the local user database authentication to all interfaces. Note To disable AAA, use the no aaa new-model command in global configuration mode. The authentication cache and profile feature allows the access point to cache the authentication and authorization responses for a user so that subsequent authentication and authorization requests do not need to be sent to the AAA server.

Excludes the wireless device IP address from the range of addresses that the wireless device assigns. Assigns the subnet number for the address pool. The wireless device assigns IP addresses within this subnet. Optional Assigns a subnet mask for the address pool, or specifies the number of bits that compose the address prefix.

The prefix is an alternative way of assigning the network mask. The following example shows how to configure the wireless device as a DHCP server, how to exclude a range of IP address, and how to assign a default router:.

The following sections describe commands you can use to monitor and maintain the DHCP server access point:. Enter the wireless device IP address to show conflicts recorded by the wireless device. Deletes an automatic address binding from the DHCP database. Specifying the address argument clears the automatic binding for a specific client IP address.

Clears an address conflict from the DHCP database. Specifying the address argument clears the conflict for a specific IP address. SSH is a protocol that provides a secure, remote connection to a Layer 2 or Layer 3 device. This software release supports both SSH versions. If you do not specify the version number, the access point defaults to version 2. SSH provides more security for remote connections than Telnet by providing strong encryption when a device is authenticated.

The client supports the following user authentication methods:. Before configuring SSH, download the cryptographic software image from Cisco. For more information, see release notes for this release. You can configure the wireless device to maintain an address resolution protocol ARP cache for associated client devices. ARP caching is disabled by default. Instead of forwarding ARP requests to client devices, the wireless device responds to requests on behalf of associated client devices.

When ARP caching is disabled, the wireless device forwards all ARP requests through the radio port to associated clients. The client that receives the ARP request responds. When ARP caching is enabled, the wireless device responds to ARP requests for associated clients and does not forward requests to clients.

When the wireless device receives an ARP request for an IP address not in the cache, the wireless device drops the request and does not forward it. In its beacon, the wireless device includes an information element to alert client devices that they can safely ignore broadcast messages to increase battery life. When a non-Cisco client device is associated to an access point and is not passing data, the wireless device might not know the client IP address. When ARP caching is optional, the wireless device responds on behalf of clients with IP addresses known to the wireless device but forwards out of its radio port any ARP requests addressed to unknown clients.

When the wireless device learns the IP addresses for all associated clients, it drops ARP requests not directed to its associated clients. To configure the wireless device to maintain an ARP cache for associated clients, follow these steps, beginning in privileged EXEC mode:. Optional Use the optional keyword to enable ARP caching only for the client devices whose IP addresses are known to the wireless device.

This feature modifies the way that point-to-multipoint bridging can be configured to operate on multiple VLANs with the ability to control traffic rates on each VLAN. In a typical scenario, multiple-VLAN support permits users to set up point-to-multipoint bridge links with remote sites, with each remote site on a separate VLAN. This configuration provides the capability for separating and controlling traffic to each site. Rate limiting ensures that no remote site consumes more than a specified amount of the entire link bandwidth.

Only uplink traffic can be controlled by using the Fast Ethernet ingress ports of non-root bridges. Using the class-based policing feature, you can specify the rate limit and apply it to the ingress of the Ethernet interface of a non-root bridge.

Applying the rate at the ingress of the Ethernet interface ensures that all incoming Ethernet packets conform to the configured rate. You can change the address for accessing the web-based interface. See Configuring Access to the Web-based Interface. Connect to the interface from a device within the LAN containing the router. The device must be within the subnet configured for accessing the router.

The default subnet mask is The page is automatically refreshed. The page shows the IP address and subnet mask used to access the web-based interface. You can enter a new IP address and subnet mask for accessing the web-based interface. The default values are:. Radio channels. By default, the router sets the channel automatically. You can select a specific channel. The channel options depend on the geographic region.

Packets per second PPS threshold. If an access point transmits a packet larger than the threshold, this will trigger the CTS protection mode. The interval is specified as number of beacons. Upper limit for the maximum number of clients that can connect to an AP. In the left pane, click Management to open the Access Control - Passwords page for configuring the administrative password.

The user name must be admin. You can follow the instructions on this page to change the password. The default password is admin. The file is saved locally on the workstation being used to access the GUI. Restoring the default configuration restarts the router, interrupting any current connections. Similarly to Cisco IOS, the prompt indicates the command mode.

For example, using the configure terminal command to enter global configuration mode changes the prompt to:. To exit from a specific mode, use the exit command. Entering a question mark? This feature provides a simple access to information about commands and relevant command options.

In interface configuration mode, entering? In SSID configuration mode, entering encryption mode wep? Three arguments current-key , encryption-strength , and key may be entered for the command. In this example, entering the command without additional arguments enables WEP encryption. To change the IP address of the bridge interface used to access the web-based interface, perform these steps.

The SSID may be up to 32 characters. The ap config-ssid prompt indicates SSID configuration mode. To enable or disable client isolation for a specific SSID, follow these steps from global configuration mode:. The no form of the command disables client isolation for the specified SSID. To set the global maximum number of clients that can connect to an AP, follow these steps from global configuration mode:.

To configure the maximum number of clients, follow these steps from global configuration mode:. Use the authentication command to configure authentication options for a specific SSID. By default, network authentication is Open.

Configures authentication options for the SSID specified in the previous step. Table 1 describes options for the authentication command. The default authentication option is open. Table 1 describes options for the authentication command:. WPA auth-port port-number. WPA key encryption-key.

WPA rekey-interval seconds. WPA server server-IP-address. WPA2 auth-port port-number. WPA2 key encryption-key. The no form of the command disables preauthentication. WPA2 reauth-interval seconds. WPA2 rekey-interval seconds. WPA2 server server-IP-address. To configure the encryption options for a specific SSID, follow these steps from global configuration mode:.

Configures encryption options for the SSID specified in the previous step. Table 1 describes options for the encryption mode command. Table 1 describes options for the encryption mode command:. Enables WEP encryption. The no form of the command disables WEP encryption. It is possible to configure four different network keys.

This command determines which key to use currently. To add a MAC address to the access-list or to remove a MAC address from the access-list, follow these steps from global configuration mode :. To select the MAC address access list mode, follow these steps from global configuration mode:. Configures a specific radio channel manually or selects automatic scanning; and configures the automatic scanning timer.

Table 1 describes the rate options for Mbps-rate specifies a rate in Mbps. The following values are possible:. To set the basic transmission rate, which is the data rate that wireless clients should support, follow these steps from global configuration mode:. To set the fragmentation threshold, which is the maximum packet size bytes before data is fragmented, follow these steps from global configuration mode:.

To set the request-to-send RTS threshold, follow these steps from global configuration mode:. Default value is Configures the DTIM interval that is included in beacon frames to inform clients of when next to expect buffered data from the AP. To set the radio transmit power for WLAN, follow these steps from global configuration mode:.

Use the show ap-config command to display the current CLI values and keywords. Use the show controllers Dot11Radio 0 command to display the current channel and power information. Use the show dot11 associations command to display the current associated clients. Details include the IP address of the router. After changing the IP address used for accessing the router, this command can be used to confirm the change. Use the show interfaces Dot11Radio 0 command to display Dot11Radio 0 interface information.

Use the show ip interface brief command to display brief details for all interfaces. In the output, the Method column indicates whether the interface was user-configured or configured by DHCP. Use the show processes cpu command to display CPU utilization statistics. Use the show memory summary command to display details of current memory usage.

Use the ping command to test connectivity with a specific address. Entering the ping command with an address specified indicates the round trip time in milliseconds for several transmissions of a small datagram.

Entering the ping command without specifying an address starts the interactive mode of the command, enabling you to enter the target address, the transmission repeat count, and the datagram size. Use the password command to change the administrator password. Changes the administrator password. Note that the command requires entering the new password twice to confirm the exact text of the new password. Use the terminal length command to configure the number of lines displayed on the screen.

The following example shows how to configure the cellular interface to be used as primary and is configured as the default route:. The following example shows how to configure the dialer-watch without external dialer interface. The bold text is used to indicate important commands that are specific to the dialer-watch:. The following example shows how to configure the dialer-persistent with external dialer interface. The bold text is used to indicate important commands that are specific to the dialer-persistent:.

The following example shows how to configure the static IP address when a GRE tunnel interface is configured with ip address unnumbered cellular interface:. Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. Log in to Save Content. PDF - Complete Book 6. Updated: May 3, Chapter: Configuring Wireless Devices.

Avoid using the CLI and the web-browser tools concurrently. If you configure the wireless device using the CLI, the web-browser interface may display an inaccurate interpretation of the configuration. To upgrade the autonomous software to Cisco Unified software on the embedded wireless device, see the Upgrading to Cisco Unified Software for instructions.

Step 1 and 2 are not required in releases prior to Release Identifies a specific line for configuration and enters the line configuration collection mode. Assigns the device or interface as the designated-gateway for the domain. Step 3. Step 4. Specifies the interface IP address and subnet mask. Step 5. Specifies that the internal interface connection will remain open. Exits interface configuration mode and returns to global configuration mode.

To create a Cisco IOS software alias for the console to session into the wireless device, enter the alias exec dot11radio service-module wlan-ap 0 session command at the EXEC prompt. If you are configuring the wireless device for the first time, you must start a configuration session between the access point and the router before you attempt to configure the basic wireless settings.

See the Starting a Wireless Configuration Session. To upgrade to Unified mode from the Autonomous mode, see Upgrading to Cisco Unified Software for upgrade instructions. No security. Static WEP key. EAP 1 authentication. WPA 9. If the service-module wlan-ap 0 bootimage unified command does not work successfully, check whether the software license is still eligible.

Wireless Overview. Wireless LAN Overview. Configuring the Radio. Configuring Radio Settings.

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