I have occasionally seen Cisco products do an ASCII or text sort of IPs rather than numerical sort. You'd think that would be a pretty big good in the code but what version are you running? What happens if you create a loopback with an IP like 10.9.9.9 and clear process just to see of that loopback gets picked up for the RID? 10.5 would sort later than 10.100 in a simple text sort.
Just a thought. Bob -- Sent from my iPhone, please excuse any typos. On Jun 16, 2012, at 12:52 PM, Fulvio allegretti <[email protected]> wrote: > > Thank you all. A reload did it, clear ip ospf does not do it, see below: > > R5#sh ip proto > Routing Protocol is "ospf 9" > Outgoing update filter list for all interfaces is not set > Incoming update filter list for all interfaces is not set > Router ID 100.5.6.5 > It is an area border router > Number of areas in this router is 2. 2 normal 0 stub 0 nssa > Maximum path: 4 > Routing for Networks: > Routing on Interfaces Configured Explicitly (Area 0): > Loopback0 > Serial0/0/0.2 > GigabitEthernet0/0.15 > Routing on Interfaces Configured Explicitly (Area 56): > Serial0/0/0.1 > Reference bandwidth unit is 100 mbps > Routing Information Sources: > Gateway Distance Last Update > 100.5.6.6 110 17:32:02 > 100.100.100.6 110 16:55:12 > 100.100.100.1 110 16:55:12 > 100.100.100.2 110 16:55:12 > Distance: (default is 110) > R5#clear ip ospf proc > Reset ALL OSPF processes? [no]: yes > R5# > *Jun 16 15:50:33.555: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.6 on > Serial0/0/0.2 from FULL to DOWN, Neighbor Down: Interface down or detached > *Jun 16 15:50:33.555: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.1 on > GigabitEthernet0/0.15 from FULL to DOWN, Neighbor Down: Interface down or > detached > *Jun 16 15:50:33.591: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.2 on > Serial0/0/0.1 from FULL to DOWN, Neighbor Down: Interface down or detached > R5# > *Jun 16 15:50:33.603: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.1 on > GigabitEthernet0/0.15 from LOADING to FULL, Loading Done > *Jun 16 15:50:33.979: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.6 on > Serial0/0/0.2 from LOADING to FULL, Loading Done > *Jun 16 15:50:34.103: %OSPF-5-ADJCHG: Process 9, Nbr 100.100.100.2 on > Serial0/0/0.1 from LOADING to FULL, Loading Done > > R5#sh ip proto > Routing Protocol is "ospf 9" > Outgoing update filter list for all interfaces is not set > Incoming update filter list for all interfaces is not set > Router ID 100.5.6.5 > It is an area border router > Number of areas in this router is 2. 2 normal 0 stub 0 nssa > Maximum path: 4 > Routing for Networks: > Routing on Interfaces Configured Explicitly (Area 0): > Loopback0 > Serial0/0/0.2 > GigabitEthernet0/0.15 > Routing on Interfaces Configured Explicitly (Area 56): > Serial0/0/0.1 > Reference bandwidth unit is 100 mbps > Routing Information Sources: > Gateway Distance Last Update > 100.5.6.6 110 17:32:42 > 100.100.100.6 110 00:00:23 > 100.100.100.1 110 00:00:23 > 100.100.100.2 110 00:00:13 > Distance: (default is 110) > > R5#sh run | sec ospf > ip ospf 9 area 0 > ip ospf network point-to-point > ip ospf 9 area 0 > ip ospf 9 area 56 > ip ospf 9 area 0 > router ospf 9 > log-adjacency-changes > R5#sh run int se 0/0/0.1 > Building configuration... > Current configuration : 136 bytes > ! > interface Serial0/0/0.1 point-to-point > ip address 100.2.5.5 255.255.255.0 > ip ospf 9 area 56 > frame-relay interface-dlci 502 > end > > R5#sh run int se 0/0/0.2 > Building configuration... > Current configuration : 135 bytes > ! > interface Serial0/0/0.2 point-to-point > ip address 100.5.6.5 255.255.255.0 > ip ospf 9 area 0 > frame-relay interface-dlci 506 > end > R5#sh run int lo0 > Building configuration... > Current configuration : 87 bytes > ! > interface Loopback0 > ip address 100.100.100.5 255.255.255.255 > ip ospf 9 area 0 > end > > **********AFTER RELOAD****** > > R5#sh ver | inc uptime > R5 uptime is 2 minutes > > R5#sh ip ospf > Routing Process "ospf 9" with ID 100.100.100.5 > Start time: 00:00:24.112, Time elapsed: 00:02:30.084 > Supports only single TOS(TOS0) routes > > > > > >> CC: [email protected]; [email protected] >> From: [email protected] >> Subject: Re: [OSL | CCIE_RS] OSPF router ID >> Date: Sat, 16 Jun 2012 12:55:04 +0800 >> To: [email protected] >> >> Interesting! As mentioned in his email, he did clear the ospf process. >> >> Fulvio, r u sure tat u answered yes when clearing the ospf process? R u sure >> you didn't config the RID manually? >> >> Regards, >> Alexander Lim >> >> On Jun 16, 2012, at 10:07 AM, "Arista Wirawan" <[email protected]> wrote: >> >>> Did you configure loopback after the ospf processes up and running with >>> router-id serial interface? >>> >>> Aris >>> Sent from my HTC >>> >>> ----- Reply message ----- >>> From: "Fulvio allegretti" <[email protected]> >>> To: <[email protected]> >>> Subject: [OSL | CCIE_RS] OSPF router ID >>> Date: Sat, Jun 16, 2012 6:31 AM >>> >>> >>> >>> Can anyone explain why I am not seeing the loopback as my ospf router-id? I >>> know I can set it manually, just trying to understand what is going on. I >>> have cleared the ip ospf proc more than once. Any ideas? >>> >>> R5#sh ip protocols >>> Routing Protocol is "ospf 9" >>> Outgoing update filter list for all interfaces is not set >>> Incoming update filter list for all interfaces is not set >>> Router ID 100.5.6.5 >>> It is an area border router >>> Number of areas in this router is 2. 2 normal 0 stub 0 nssa >>> Maximum path: 4 >>> Routing for Networks: >>> Routing on Interfaces Configured Explicitly (Area 0): >>> Loopback0 >>> Serial0/0/0.2 >>> GigabitEthernet0/0.15 >>> Routing on Interfaces Configured Explicitly (Area 56): >>> Serial0/0/0.1 >>> Reference bandwidth unit is 100 mbps >>> Routing Information Sources: >>> Gateway Distance Last Update >>> 100.5.6.6 110 00:39:28 >>> 100.100.100.6 110 00:02:38 >>> 100.100.100.1 110 00:02:38 >>> 100.100.100.2 110 00:02:38 >>> Distance: (default is 110) >>> >>> >>> R5#show ip int bri | ex un >>> Interface IP-Address OK? Method Status Protocol >>> GigabitEthernet0/0.15 100.1.5.5 YES manual up up >>> Serial0/0/0.1 100.2.5.5 YES manual up up >>> Serial0/0/0.2 100.5.6.5 YES manual up up >>> Loopback0 100.100.100.5 YES manual up up >>> >>> running: c3845-adventerprisek9-mz.124-24.T5.bin >>> >>> Thanks, Fulvio >>> >>> _______________________________________________ >>> 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 >>> >>> http://onlinestudylist.com/mailman/listinfo/ccie_rs >>> _______________________________________________ >>> 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 >>> >>> http://onlinestudylist.com/mailman/listinfo/ccie_rs > > _______________________________________________ > 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 > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ 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 http://onlinestudylist.com/mailman/listinfo/ccie_rs
