From: Jon Hein (gs@dfwmall.net)
Date: Sun Jul 09 2006 - 12:51:15 ART
I have had problems with authentication also. Usually if I put the
commands on correct the first time, it works. If I make changes, even if
the changes are correct, sometimes there are problems.
If you feel certain your commands are correct, copy them to notepad,
remove from both routers, and reapply. Sometimes I also do this with the
entire routing process. Sometimes a reboot will solve authentication
mismatch problems, assuming your commands are correct. I think this is one
area where "order of operation" is important.
> Hi,
>
> I am trying authentication with EIGRP.
>
> It is working only when "key id 1" has the same key-string value on both
> sides.
>
> In case key-string value of "key id 1" on one side matches with key-string
> value of "key id 2" of other side
> It says -> EIGRP: pkt key id = 1, authentication mismatch
>
> Also I tried with using same key-string values for "key id 2" on both
> sides(key-string values for "key id 1" still being different)......still
> the
> same message -> EIGRP: pkt key id = 1, authentication mismatch
> As per the CCO Documentation, the IOS sends the packet with only one key
> and
> keeps searching till it gets one valid key which is same on both
> sides.....I
> interpret it like -> It would keep sending the packets with different keys
> one after the another untill & unless it finds any matching key-string
> from
> other side.Ideally it wouldn't care for "key-id" nos., It would rather
> care
> for "key-string" values.
>
> Could somebody clarify please....
>
> Thanks,
> Sugam
>
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