[c-nsp] Troubleshooting bad OSPF routes

Vincent De Keyzer vincent at dekeyzer.net
Thu Apr 27 06:09:56 EDT 2006


Alley,

thanks for looking at this.

> Where are the routes origionating from?LSA type? you might be clearing on
> the wrong router or this might be a legitimate situation based on config.
> Pls attach a sh ip ro x.x.x.x and sh ip o data # x.x.x.x, and a sh run | b
> router ospf (just the ospf portion).

Router A is downtown, router B is airport:

downtown>sh ip ro 10.106.248.15
Routing entry for 10.106.248.15/32
  Known via "ospf 1302", distance 110, metric 14, type intra area
  Last update from 10.106.246.38 on GigabitEthernet2/0.213, 22:15:13 ago
  Routing Descriptor Blocks:
  * 10.106.246.38, from 10.106.248.15, 22:15:13 ago, via
GigabitEthernet2/0.213
      Route metric is 14, traffic share count is 1

downtown#sh run | b router ospf
router ospf 1302
 log-adjacency-changes
 redistribute static subnets
 passive-interface default
 no passive-interface GigabitEthernet2/0.213
 no passive-interface GigabitEthernet2/0.215
 no passive-interface GigabitEthernet2/0.216
 network 10.106.48.0 0.0.1.255 area 0
 network 10.106.246.32 0.0.0.3 area 0
 network 10.106.246.36 0.0.0.3 area 0
 network 10.106.246.44 0.0.0.3 area 0
 network 10.106.246.56 0.0.0.3 area 0
 network 10.106.248.64 0.0.0.0 area 0
 default-information originate

_________

airport>sh ip ro 10.106.248.15
Routing entry for 10.106.248.15/32
  Known via "ospf 1503", distance 110, metric 4, type intra area
  Last update from 10.106.246.37 on FastEthernet0/1, 22:18:56 ago
  Routing Descriptor Blocks:
  * 10.106.246.37, from 10.106.248.15, 22:18:56 ago, via FastEthernet0/1
      Route metric is 4, traffic share count is 1

airport#sh run | begin ^router ospf
router ospf 1503
 log-adjacency-changes
 passive-interface default
 no passive-interface FastEthernet0/0
 no passive-interface FastEthernet0/1
 network 10.106.68.0 0.0.0.255 area 0
 network 10.106.246.36 0.0.0.3 area 0
 network 10.106.246.40 0.0.0.3 area 0
 network 10.106.248.18 0.0.0.0 area 0


What was the third command you wanted to see?

airport#sh ip ospf database # 10.106.248.15
                            ^
% Invalid input detected at '^' marker.


Thanks already

Vincent



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