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New Member

eigrp authentication problem

i have 4 routers with eigrp

5300 (12.3(1)) 5350(12.3(1)) 3640 (12.1(11)) 7206 (12.1(7b))

all in one subnet on fastethernet

when i enable eigrp authentication all routers except 7206 - OK

7206 up and after 10 sec down

in debug i see that after some time 7206 lost connectivity due to auth failure

also if i connect to 7206 thru 802.1q subinterface by another router and enable authentication everything - OK

  • Other Network Infrastructure Subjects
2 REPLIES
New Member

Re: eigrp authentication problem

This is a common problem..

Remove the key-chain you have created and configure it again one by one. DON'T USE COPY AND PASTE FROM ANOTHER ROUTER OR THROUGH NOTEPAD.

Try this out and let me know how it goes.

New Member

Re: eigrp authentication problem

Thank You for advise ( i removed keys from all routers and enter them manually again) but it did`t help

eigrp sessions up but after resets

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