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Community Member

OSPF MD5 over NBMA

R1 (s0.1 multipoint)--FR NBMA---- s0 R2

R1 (s0.1 multipoint)--FR NBMA---- s0 R3

R1

int se 0.1 mu

ip ospf mess 1 md5 cisco

router ospf 20

area 0 aut me

R2 and R3 with same configuration.

and they don't work.

R1,R2,R3 can ping each other, but can not form the adjacency.

what is wrong?

thanks

2 REPLIES
VIP Purple

Re: OSPF MD5 over NBMA

Hello,

can you post the output of the command debug ip ospf adj ?

Check the interface parameters with the show ip ospf interface command and make sure they match. Can you also post the full configuration of all three routers ?

Regards,

Georg

Community Member

Re: OSPF MD5 over NBMA

Thanks a lot.

I guess maybe I got it.

between R1 and R2, there is a ISDN link. I shutdown it. now it is ok.

but I am still confused why after ISDN down, the authetication became fine?

thanks a lot.

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