Indeed, is 200.200.200.1 a loopback interface? It will go 1) manually set by "router-id" command 2) highest loopback 3) highest interface address
On Sat, Oct 24, 2009 at 6:14 PM, Matt Hill <[email protected]> wrote: > Hi Nick, > > If you have a looopback configured it would take precedence over any > physical interface. Regardless of the IPs. ie if you have an ethernet > interface which is 223..255.255.254 and a loopback which is 1.0.0.1 and no > router-id configured under the ospf process then the router-id would 1.0.0.1 > once the ospf process starts. > > Cheers, > Matt > > 2009/10/25 nicholas golden <[email protected]> > >> I have a question about OSPF Router ID. >> >> I know how to change it in all forms, but the question I have is after I >> change it and I do a "Clear ip ospf process" and type yes and then do a show >> ip ospf, it still shows the old router id. For example I put 200.200.200.1 >> on a S1/1 interface, so I changed it to 1.1.1.1 to represent router 1. After >> I did a clear ip ospf pro, typed yes it still was 200.200.200.1. It wasn't >> until a reload of the router that it went back. This only happens on one of >> my 3640's but not all of them. >> >> Anyone run into this in the lab, on a 2811, 3825 or anything else - seems >> odd to me as it works on other routers with the same IOS code? >> >> -Nick >> >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > -- Regards, Joe Astorino CCIE #24347 (R&S) Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com
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