Hi!
I have a strange problem. I have several EdgeRouters setup in a network with OSPF.
Primary router is A connected to Internet. It's also connected to router B over a fiber connection. The fiber connection is working. From router B several connections to other routers (C, D, E, F etc. over wireless links)
Everything is setup with OSPF for redundancy.
Router A
˄
|
˅
Router B
Suddenly router B stops passing traffic. It's running, but nothing happens (It's not rebooting, even though it looks like it).
This causes Internet for all clients on other routers to lose connection to Internet.
It looks like it's OSPF related, but I'm not sure. Looking in the log reveals nothing at the time the drop is happening, (cat /var/log/messages), but after (around 20 minutes) the following is logged:
Jul 22 16:22:53 gw-5900 OSPF[936]: OSPF-4: Detected router with duplicate router ID xx.xx.xx.1 in area 0.0.0.0 Jul 22 16:24:08 OSPF[936]: last message repeated 4 times
I have of course checked if that is the case, There's no routers in the network with same router ID.
Any idea how I can troubleshoot this annoying problem drop of connection problem ?