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RIP Commands

XSR CLI Reference Guide 5-125

ip rip authentication

Thiscommandsetsordeletesthesinglea uthenti cationkeyusedforRIPauthenticationonthe

interface.Authenticationcanbeusedonlyifakeyexists.Deletinganexistingkeydisablestheuse

ofauthenticationforRIP.

Syntax

ip rip authentication key text

Syntax of the “no” Form

ThenoformofthiscommanddeletesthespecifiedkeyandpreventsRIPfromusing

authentication:

no ip rip authentication key text

Mode

Interfaceconfiguration:XSR(config-if<xx>)#

Default

Noauthenticationkey

Example

Thefollowingexamplesetstheauthentication modeastextand thekeytextasphoneon

FastEthernetport1:

XSR(config)#interface fastethernet 1

XSR(config-if<F1>)#ip rip authentication key phone

XSR(config-if<F1>)#ip rip authentication mode text

RIP Example

Thefollowingexample,asshowninFigure 5‐2,enablesRIPonbothFastEthernetinterfacesof

Router1,alsoenablingroutingexchangesontheseriallinkRouter1‐Router2(Serialport2).

Note: This type of filtering might prove problematic in situations where you want to filter an exact

route (for RIP v2). For example, if you want to filter route 10.0.0.0/8, a filter set as access-list 1

deny 10.0.0.0 0.255.255.255 will not suffice, because subnets such as 10.0.0.0/9, 10.0.0.0/

10 and so on will also be denied. So, to restrict the filter to 10.0.0.0/8 only, configure an extended

access list with the following format: access-list 101 deny 10.0.0.0 0.0.0.255

255.0.0.0 0.0.0.0

text

Identifiesthekey.Validvaluesarestringsof16charactersorless.

Spacescanbeusedifthecompletekeyisboundedbyquotations.

Note: The command refers to one key only, not a key chain.

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