Default route in ISIS

From: Adam Cratty (acratty@xxxxxxxxxx)
Date: Fri Nov 09 2001 - 11:13:24 GMT-3


   
Group,

I am having no success advertising a default route from an L1/L2 ISIS
router to an L1 ISIS router.

Ex: R2 (L1/L2) ----------------------- R1 (L1)

I am using the default information originate command on R2 above. By
default this operation will create an L2 route to 0.0.0.0 which will not
be advertised to an L1 router, so I am using a route-map to make it an
L1 that will be advertised to R1....but it never makes it. Sample
config below:

R2:

clns routing

router isis
area 49.0010.2222.2222.2222.00
default-information originate LEVEL1

route-map LEVEL1
  set level level-1

ip route 0.0.0.0 0.0.0.0 null0

int s0.1
 ip address 192.168.3.2 255.255.255.0
 frame-relay interface-dlci 101

R1:

clns routing

router isis
area 49.0010.1111.1111.1111.00
is-type level-1

int s0.1
   ip address 192.168.3.1 255.255.255.0
   frame-relay interface-dlci 102

I just typed these sample configs into the e-mail so please ignore any
typographical or minor syntax errors...I am just trying to paint a
clearer picture of what I am trying to accomplish.

This is defintiely not an NBMA issue. The routers form an adjacency
and pass other L1s between them.

My problem is strictly with the default-information originate command
and getting the L1/L2 router to advertise the default route to the L1
router.

Any help?

Thanks,
Adam



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