Re: IS-IS Route Leaking/Redistribution

From: Rajagopal S (raj_ccie@yahoo.com)
Date: Mon Sep 15 2003 - 05:51:02 GMT-3


Hi chip,
 
Try putting a route-map which has all the networks in it and have the command "redistribute isis level-1 route-map test" when redistributing.
 
By default when u do redistribution of subnets, it takes in only the L1 routes which are local to that group. It wont recognise the L1 routes outside the group.
 
Example:
 
router bgp 1
redistribute isis level-1 route-map test
access-list 10 permit 172.0.0.0 0.255.255.255
 
route-map test permit 10
match ip address 10
 
Try this and let us know the result.
 
Cheers
Raj
 
 
Chip Nielsen <chipn@intraworx.net> wrote:
Hello,

Hoping someone can shed some light on a scenario I've been working on:

R1---R2---R3---R4

OSPF Area 0 between R1 and R2
IS-IS Level 1 between R2 and R3 (same area)
IS-IS Level 2 between R3 and R4 (different areas)

R3 is receiving Level 2 IS-IS routes from R4 which I then leak into
IS-IS Level 1 using

Redistribute isis level-2 to level-1 distribute-list 100
Access-list 100 permit ip any any

I am trying to redistribute the IS-IS inter-area routes into OSPF on
router R2:

redistribute isis level-1 subnets

R1 is only receiving one level-1 route (which shows as L1 in R2's
routing table), but it is not receiving any of the IS-IS inter-area (ia)
routes.

Is it even possible to redistribute leaked inter-area routes on a L1
router into another routing protocol? It seems to me that this would be
incorrect and
R2 should actually be a level-2 router.

Any help would be appreciated.

***Get your CCIE and a FREE vacation: Shop.GroupStudy.com***



This archive was generated by hypermail 2.1.4 : Wed Oct 01 2003 - 07:24:27 GMT-3