Cisco Systems 78-13983-04 manual Verifying the Version of Cisco IOS Software

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Chapter 4 Configuring with the Command-Line Interface

Before You Begin

Before You Begin

Before you configure the MWR 1900, there are a few caveats of which you should be aware:

You cannot disable Cisco Express Forwarding (CEF) on the MWR 1900. Commands such as

no ip cef will display an error message “%Cannot disable CEF on this platform.” Some commands, such as no ip route-cache cef, will not return an error message. However, CEF will not be disabled regardless of whether an error message is displayed.

If you are using the MWR 1900 in a redundant configuration and are attaching the MWR 1900 to a device that uses spanning tree, configure portfast on the device to avoid problems with HSRP at start up.

If you are using the MWR 1900 in a redundant configuration, disable Extended Availability Drop and Insert (EADI) capabilities on the router (using the disable-eadiglobal configuration command) to avoid a double-termination scenario upon reboot. If the MWR 1900 is not being used in a redundant configuration, and EADI is specifically required, re-enable EADI using the

no disable-eadiglobal configuration command.

In case of a tie in priority, HSRP uses the IP address to determine the active router. Therefore, you should ensure that the order of the IP addresses of the E1/T1 interfaces of the active router corresponds to the order of the IP addresses of the E1/T1 interfaces of the standby router.

Verifying the Version of Cisco IOS Software

The MWR 1900 requires Cisco IOS Release 12.2(8)MC2 or a later Cisco IOS Release 12.2 MC be installed. To verify the version of Cisco IOS software, use the show version command.

The show version command displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

Configuring the Host Name and Password

One of the first configuration tasks you might want to do is configure the host name and set an encrypted password. Configuring a host name allows you to distinguish multiple Cisco routers from each other. Setting an encrypted password allows you to prevent unauthorized configuration changes.

Step 1 Enter enable mode and enter the password.

You have entered enable mode when the prompt changes to Router#.

Router> enable

Password: <password>

Step 2 Enter global configuration mode.

Router# configure terminal

The prompt changes to Router(config)#.

Cisco MWR 1900 Mobile Wireless Edge Router Software Configuration Guide

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78-13983-04

 

 

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Contents Corporate Headquarters Customer Order Number DOC-7813983= Text Part NumberCopyright 2002 Cisco Systems, Inc All rights reserved About This Guide Software FeaturesLimitations and Restrictions First-Time Configuration AudienceConfiguring PIM Using the Setup Command FacilitySaving Configuration Changes Configuring PPP MultiplexingMode y-cable Configuring RedundancyWhere to Go Next Assigning a QoS Boilerplate to an InterfacePage Organization ObjectivesAudience Chapter Title DescriptionBoldface font Document ConventionsConvention Description Boldface screenObtaining Documentation Additional InformationRelated Documentation World Wide WebOrdering Documentation Obtaining Technical AssistanceDocumentation CD-ROM Documentation FeedbackTo access Cisco.com, go to the following website Cisco.comTechnical Assistance Center Contacting TAC by Telephone Overview of the MWR BenefitsNetwork Processor Software Software FeaturesCisco IOS Software MLP, PPP Control Path IPCP, NCP, LCP, ClnsPPP Multiplexing/Demultiplexing RTP/UDP Header CompressionRedundancy Support RTP Header CompressionRFC1213-MIB MIB SupportMWR 1900 supports the following MIBs RFC1253-MIBLimitations and Restrictions 802.1Q VLANs Frame Relay FRUnderstanding Boot Images Before You BeginUnderstanding Interface Numbering Interface type Slot number/Interface number Using the Setup Command Facility Configuring Global ParametersBefore Starting Your Router Viewing the configuration Enter a host name for the router this example usesCompleting the Configuration You are then prompted to configure the specified interfaceSummary of interfaces is displayed Where to Go Next First-Time Configuration Where to Go NextCisco IOS Software Basics Getting HelpExit , or logout Understanding Command ModesConfigure terminal As interface serial 0/0Undoing a Command or Feature Saving Configuration ChangesPage Configuring with the Command-Line Interface Prompt changes to Routerconfig# Configuring the Host Name and PasswordEnter global configuration mode Verifying the Version of Cisco IOS SoftwareExit interface configuration mode Configuring Loopback InterfacesExit to global configuration mode Change the name of the router to a meaningful nameConfiguring Fast Ethernet Interfaces Configuring the FE Interface IP AddressSetting the Speed and Duplex Mode Configuring Routing Protocol Attributes Configuring PIMSpecify the speed Configuring Hsrp Support Configuring Multilink Interfaces Enabling the FE InterfaceSpecify a priority Configuring Multilink PPP Configuring IP Address AssignmentEnable multilink PPP operation To set the default PPP protocol ID, enter Configuring PPP MultiplexingConfiguring RTP/UDP Compression To set the maximum length of the subframe, enterRPM-3config-if#ip rtp header-compression Configuring T1 and E1 Interfaces Configuring T1 InterfacesConfiguring E1 Interfaces Set the carrier delay for the serial interfaceConfiguring QoS Attributes Creating a Class Map Creating a Policy Map78-13983-04 Configuring Redundancy Assigning a QoS Boilerplate to an InterfaceRedundant MWR 1900s Exit y-mode configuration mode Stand-Alone MWRSpecify the interface to be used for backhauling Verifying the Configuration MWR1900-1#show running-configMatch access-group Ip ospf message-digest-key 1 md5 mymd5pw Ip ospf Hello-interval Ospf Dead-interval Monitoring and Managing the MWR Show Commands for Monitoring the MWR Command PurposeShow controllers Show interface type slot / portShow protocols Command Reference Clear ip rtp header-compression Clear ppp mux Command Modes Command History Usage Guidelines ExamplesRelated Commands Description Clear ppp mux interface interfaceIp rtp header-compressionEnables RTP header compression Syntax Description Defaults Command ModesConnections Interface configuration Ip rtp compression-connectionsSyntax Description Defaults Command Modes Command History Ip rtp header-compressionPassive Related Commands Description Standalone Mode y-cableMode y-cable Standby use-interfaceCommand Modes Command History Ppp muxPpp mux delay Ppp mux delay integer no ppp mux delayUsage Guidelines Examples Related Commands Ppp mux frame Defaults Command Modes Command HistoryDefault maximum length is Interface configuration Ppp mux frame integer no ppp mux framePpp mux pid Ppp mux pid integerPpp mux subframe length Ppp mux subframe length integer No ppp mux subframe lengthDefault maximum is Interface configuration Ppp mux subframe countPpp mux subframe count integer No ppp mux subframe count Invoked y-cable mode Global configurationFollowing example enables redundancy mode Redundancy1describes the significant fields shown in the display Show ip rtp header-compressionShow ip rtp header-compression type number detail Field DescriptionThat can exist on an interface Show ppp mux Interface interfacePpp mux Enables PPP multiplexing/demultiplexing 2describes the significant fields shown in the displayThis command has no attributes Show redundancyStand-alone configuration Invokes y-cable modeInvokes redundancy mode StandbyStandalone Syntax Description DefaultsCable configuration No standaloneStandby use-interface Standby use-interface interface health revertive backhaulStandby use-interface loopback102 revertive Page Cisco IOS About Command modes Enable mode IP addressCounters, PPP multiplexing MIB support Mode y-cable IN-2Command ConfiguringIN-4