7 Replies Latest reply: Nov 8, 2011 2:18 AM by Natraj Babaria RSS

    EIGRP authentication

    Kumar Mantri

      Hello everyone,

       

           i was configuring eigrp authentication on two routers and the configuration on both the routers as follows

       

      BB:

      key chain key

      key 1

        key-string kumar

      !

       

      interface Serial0/0

      bandwidth 256

      ip address 10.0.0.1 255.255.255.252

      ip authentication mode eigrp 90 md5

      ip authentication key-chain eigrp 90 key

      serial restart-delay 0

      !


      LONDON:

      !

      key chain keys

      key 2

        key-string kumar

      !

       

      interface Serial0/0

      bandwidth 256

      ip address 10.0.0.2 255.255.255.252

      ip hello-interval eigrp 90 20

      ip hold-time eigrp 90 25

      ip authentication mode eigrp 90 md5

      ip authentication key-chain eigrp 90 keys

      serial restart-delay 0

       

      As you can observe the key number is different but key string is same

      The neighbour relationship didn't form between these two routers but happens when i remove the "key 1" and add "key 2"on BB.  but according to "ccnp 642-902 official guide by WENDELL ODAM"

       

      Untitled.png

       

      By looking at the above pic as you can observe that "key chain name and key number used on the two routers do not have to match" this statement satisfies with key chain name but it didn't "key number".and for your informaton both keys on both routers are valid... i struck up here ..please someone help me out here....wendel