RE: Problem with Distance in OSPF

From: Ajay Prakash (ajay.prakash@networkpeople.co.in)
Date: Thu Sep 20 2007 - 06:27:19 ART


Yes, This is a IE scenario, lab 13. I'll try and look into the archives for
the same.

Thanks,
Ajay

-----Original Message-----
From: Shine Joseph [mailto:shinepjoseph@iprimus.com.au]
Sent: Thursday, September 20, 2007 2:53 PM
To: 'Ajay Prakash'; ccielab@groupstudy.com
Subject: RE: Problem with Distance in OSPF

Ajay,

I think you are referring to a IE scenario. There was a discussion about
this about few weeks back. You would be able to dig that from the archives.

Changing of OSPF AD for selected prefixes doesn't, apparently, work for all
IOS versions.

Regards,
Shine

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Ajay
Prakash
Sent: Thursday, 20 September 2007 6:01 PM
To: ccielab@groupstudy.com
Subject: Problem with Distance in OSPF

Hello,

 

I have some problems with changing the AD in OSPF. I am trying to change the
distance or some routes learned by a neighbor to 109. However when I see the
routing table, it seems that the AD is changed only for one network (which
is directly connected to neighnor). Please help me understand this behavior.

 

 

Rack1R5#sh run | s ospf

router ospf 1

 router-id 150.1.5.5

 log-adjacency-changes

 network 139.1.15.5 0.0.0.0 area 1

 network 139.1.25.5 0.0.0.0 area 1

 distance 109 150.1.1.1 0.0.0.0 FROM_R1 ---------------> I want to change
distance for specific networks learned from this neighbor. 150.1.1.1 is the
router id of neighbor

 

Rack1R5#sh access-lists

Standard IP access list FROM_R1

    40 permit 139.1.11.0 (3 matches)

    10 permit 139.1.2.0 (3 matches)

    50 permit 139.1.0.0 (3 matches)

    20 permit 139.1.6.0 (3 matches)

    30 permit 139.1.7.0 (3 matches)

 

Rack1R5#sh ip ospf neigh

 

Neighbor ID Pri State Dead Time Address Interface

150.1.2.2 0 FULL/ - 00:00:38 139.1.25.2
Serial0/0.52

150.1.1.1 0 FULL/ - 00:00:30 139.1.15.1
Serial0/0.51 --------------> This neighbor is connected by a point to
point frame relay sub-interface

 

 

Rack1R5#sh ip route ospf

     139.1.0.0/16 is variably subnetted, 14 subnets, 2 masks

O IA 139.1.11.0/24 [109/65] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 139.1.13.0/24 [110/128] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 139.1.2.0/24 [110/65] via 139.1.25.2, 00:00:15, Serial0/0.52

O IA 139.1.0.0/24 [110/138] via 139.1.25.2, 00:00:15, Serial0/0.52

                     [110/138] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 139.1.6.0/24 [110/139] via 139.1.25.2, 00:00:15, Serial0/0.52

                     [110/139] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 139.1.7.0/24 [110/139] via 139.1.25.2, 00:00:15, Serial0/0.52

                     [110/139] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 139.1.23.0/24 [110/128] via 139.1.25.2, 00:00:15, Serial0/0.52

     150.1.0.0/16 is variably subnetted, 8 subnets, 2 masks

O IA 150.1.7.7/32 [110/139] via 139.1.25.2, 00:00:15, Serial0/0.52

                     [110/139] via 139.1.15.1, 00:00:15, Serial0/0.51

O IA 150.1.6.6/32 [110/139] via 139.1.25.2, 00:00:15, Serial0/0.52

                     [110/139] via 139.1.15.1, 00:00:17, Serial0/0.51

O IA 150.1.3.3/32 [110/129] via 139.1.25.2, 00:00:17, Serial0/0.52

                     [110/129] via 139.1.15.1, 00:00:17, Serial0/0.51

O 150.1.2.2/32 [110/65] via 139.1.25.2, 00:00:17, Serial0/0.52

O 150.1.1.1/32 [110/65] via 139.1.15.1,



This archive was generated by hypermail 2.1.4 : Sat Oct 06 2007 - 12:01:14 ART