As long as the loopback interface is active (which is the case by default), then the loopback interface will be used as the Router-ID during election.
As Matt suggested, do a clear ip ospf process as it likely you may have created the loopback after you set up OSPF...? Many Thanks, Combatant101 My IT Blog > http://myitgeekblog.wordpress.com CCIE Notes > http://mycciegeekblog.wordpress.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Hill Sent: 12 July 2011 09:41 To: Alef Cc: [email protected] IE Subject: Re: [OSL | CCIE_RS] loopback and RID problems or why does my router not set it's RID with the loopback Was OSPF up before the loopback was? What about restarting OSPF (ie clear ip ospf process etc) after the wrong RID is elected? Cheers, Matt CCIE #22386 CCSIE #31207 On 12 July 2011 18:16, Alef <[email protected]> wrote: > I have this very strange problem and it drives me nuts. I have a 3 way frame relay cloud with R2, R5 and R6 with R2 being the hub (akin to the day 4 security lab if you use the BLS video's). > > The fr cloud uses 100.100.100.0/29 > For some messed up reason, R5 ALWAYS chooses it's serial1/0 ip address, 100.100.100.5, instead of it's configured loopback address 5.5.5.5. No RID has been set. R2 and R6 choose their loopback fine. > > I cannot seem to figure out why it does this. I tried shutting down the serial, removing the loopback, putting it back in, etc. > > I'd rather not set the RID manually, i want to know why it exhibits this behaviour. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
