RIP Authentication

ip rip authentication mode md5	Interface command
no ip rip authentication mode md5	Interface command

Set the interface with RIPv2 MD5 authentication.

ip rip authentication mode text	Interface command
no ip rip authentication mode text	Interface command

Set the interface with RIPv2 simple password authentication.

ip rip authentication string string	Interface command
no ip rip authentication string string	Interface command

RIP version 2 has simple text authentication. This command sets authentication string. The string must be shorter than 16 characters.

ip rip authentication key-chain key-chain	Interface command
no ip rip authentication key-chain key-chain	Interface command

Specifiy Keyed MD5 chain.

     !
     key chain test
      key 1
       key-string test
     !
     interface eth1
      ip rip authentication mode md5
      ip rip authentication key-chain test
     !