Rip authentication erro

[obadah]

Hello,

i am trying to generate a key in ripv2 but  Whenever I want to enable rip this message comes out

R1(config-if)#ip rip authentication key-chain cisco

                        ^

% Invalid input detected at '^' marker.

can someone help me please to solve this problem

[Martin L · Accepted solution]

You are using a simulator like PT where not all commands and technologies/features are supported. PT is great tool to learn basics,  IOS commands and fundamentals of networking but it is not real IOS, neither behave like one.   It great for CCNA level but not really meant to be used to study beyond that level. 

here is sample from working RIP authentication (only 1 router shown)

R1:
key chain RIP
key 1
key-string CISCO
!
interface Gig0/0
ip rip authentication mode md5
ip rip authentication key-chain RIP
!\

Regards, ML
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