EIGRP problem

Unanswered Question
Feb 12th, 2009

I have 2 routers point-to-point subinterfaces Frame Relay. On both EIGRP is running. I faced the following problem recently.

The hub router did not received any routes from the spoke router. We figured out that the WAN link probaply did not let multiaccess traffic to pass through it since all other traffic was passing ok but the routes (since EIGRP uses multiaccess traffic(224.0.0.10)for updates)were not learned from the hub router. We configured tunneling on both routers and now it's ok.

Is it possible the Telco company for a reason to forbit multiaccess traffic between two nodes?

Is there another problem that we did not think about it?

Thanks a lot

Moses

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Richard Burts Thu, 02/12/2009 - 04:39

Moses


Your post tells that the hub router did not receive routes from the spoke but does not say whether the routers successfully established a neighbor relationship. If you do show ip eigrp neighbor on each router does it see the other router as a neighbor? That would be an important thing to know in analyzing this problem.


HTH


Rick

moses12315 Thu, 02/12/2009 - 21:29

Actually Rick hub router established a neighborship with the spoke router on the directly connected interface between them . The route to the directly connected interface is known by the hub router but not the ethernet(LAN) interface on the spoke router.

Thanks a lot

Moses

moses12315 Thu, 02/12/2009 - 21:30

In case you might ask network command is ok and no access-lists are configured.

Richard Burts Fri, 02/13/2009 - 08:28

Moses


Thank you for the information. It would be helpful if you would post the config of both routers and the output of show ip interface brief.


HTH


Rick

Richard Burts Mon, 02/16/2009 - 07:23

Moses


Thank you for the additional information. I have a question about the output that you sent. The output of show ip interface brief from the spoke does not show the FastEthernet interface. I can not tell whether that represents a problem with the interface (which might impact advertising the interface) or whether it is a problem with your cut and paste. If we do not get complete and accurate information it is very difficult to identify the problem.


You have provided the configuration of the interfaces but not the configuration of EIGRP which will be important in understanding the issue here. Please add the complete configuration of EIGRP on both routers to the config and repost it.


It would also be helpful if you would include the output of show ip eigrp topology 10.0.54.1 255.255.255.0 from the hub router.


HTH


Rick

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