We have a backup ISDN line between two routers, and we want to use eigrp
between them when the line is active (just a couple of routes, no big deal.)
When the line comes up, my side doesn't receive ANY hellos, yet it receives
updates! My side also does not see any neighbors appear, yet the far side
sees me as a neighbor. Take a look:
MyRouter#show ip eigrp traffic
IP-EIGRP Traffic Statistics for process 2
Hellos sent/received: 1112/0
Updates sent/received: 0/247
Queries sent/received: 0/0
Replies sent/received: 0/0
Acks sent/received: 0/0
Input queue high water mark 1, 0 drops
SIA-Queries sent/received: 0/0
SIA-Replies sent/received: 0/0
Debugging logs:
08:54:44: EIGRP: Neighbor(10.120.226.2) not yet found
08:54:49: EIGRP: Neighbor(10.120.226.2) not yet found
08:54:54: EIGRP: Neighbor(10.120.226.2) not yet found
08:54:59: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
08:54:59: AS 2, Flags 0x1, Seq 17/0 idbQ 0/0
08:54:59: EIGRP: Neighbor(10.120.226.2) not yet found
08:54:59: EIGRP: Sending HELLO on BRI0
08:54:59: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
08:55:04: EIGRP: Sending HELLO on BRI0
08:55:04: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
08:55:04: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
08:55:04: AS 2, Flags 0x1, Seq 17/0 idbQ 0/0
08:55:04: EIGRP: Neighbor(10.120.226.2) not yet found
08:55:08: EIGRP: Sending HELLO on BRI0
08:55:08: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
08:55:09: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
08:55:09: AS 2, Flags 0x1, Seq 17/0 idbQ 0/0
08:55:09: EIGRP: Neighbor(10.120.226.2) not yet found
08:55:12: EIGRP: Sending HELLO on BRI0
08:55:12: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
08:55:14: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
08:55:14: AS 2, Flags 0x1, Seq 17/0 idbQ 0/0
08:55:14: EIGRP: Neighbor(10.120.226.2) not yet found
Why am I getting updates but not hellos? Why am I successfully receiving
his updates but not acknowledgements? Neither of us have an access list
blocking eigrp, obviously, or none of this would work.
Every interface on my router is passive except for the BRI, and I'm
redistributing a couple of static routes.
Any ideas? I've checked CCO for bug reports (I'm running 12.1(5) on a 2520,
they have 12.0(5) on a 2600.) No luck there.
Any help would be greatly appreciated!
John
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