OSPF routing question

[suhon]

Does anybody know why after I issued the command to use OSPF protocol for routing, I can see a number of routes (using "show ip routes"). But 5-10mins later when I issue the "show ip route" command again. I don't see any routes anymore?

[deilert]

Waht does your config look like and and are there any other routers in your OSPF domain ?

[suhon]

Hi, thanks for replying.

Yes there are. Its a WAN link (leased line). I can see my other routers at first, but just as I mentioned earlier after a few minutes later, it's gone. Really weird to me.

[rjackson]

could be mismatched timers on the two routers. But I'm not sure if ospf will even build an adjaceny if the timers dont match. Try 'sho ip ospf int' on both routers and compare the hello, dead and wait timers.

[mshickell]

Log in to the 2 routers either side of the wan link

term mon

debug ip routing

See if there are any tell tale clues when the routes flap again. If not the problem is probably not related to your WAN link.

If the OSPF timers were wrong you wouldn't get an adjacency at all.