Is it possible that the wireless path is not available to the route when the router boots? Or that it (for whatever reason) loses the wireless link?
If that path goes down, the route is removed from the table ... if the path is not available when the router boots, it won't add the path to the table.
What does the SH IP ROUTE command give you for a routing/forwarding table at the time of the failure?
Are either ports plugged into a switchport with spanning tree enabled? When the router reloads / reboots / powers up, the switchport will block traffic for ~50 seconds or so (then the router sees the path as "down" and fails to install the route).
You could try a spanning-tree portfast on those ports to remove the delay.
Both the fa0/0 and Eth0/1 interfaces are connected at boot time, and both wireless links are up.
I do not run STP.
Regardless if the path goes down, or even if the interface is shut, it should be possible to enter the configuration line:
"C2620(config-router)#neighbor 172.16.10.102 eth1/0" and have it stay there. The focus here is not so much the routing table, but of course this scenario has an effect on the routing table since the path via Eth1/0 won't establish a neighbor relationship, and EIGRP thinks that this link is down, although it is perfectly working.
And by the way - Issue resolved. Sundar gave me the "wink with the telephone pole" by asking explicitly for the subnet mask.
It is true that i many days ago have widened the subnet mask on the Ethernet 1/0 interface from a /27 to a /25. And did not do the same with the "network" statement in EIGRP.
The funny thing is that this mistake clearly did not have any immediate effect, so I was unable to connect the dots. It took maybe 2 weeks, and then suddenly the line "neighbor 172.16.10.102 Ethernet1/0" disappeared from the running config, and the neighbor association vanished.
What are the wireless devices that you are using that block broadcast traffic? I have two sets of 1400 bridges that I would like to route over with EIGRP and would like to know if I need to use this neighbor command as you did.
We run a Ptp link (Trango) that does pass broadcasts, and the backup link is simple Client Premise equipment (That does not pass broadcasts).
Go and try it. If you find that you don't get a neighbor association (sh ip eigrp neigh), then you most likely will need the 'neighbor' command. Although I assume that a dedicated PtP bridge WILL pass Broadcasts.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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