External LSAs keeping ISDN line up!!!

From: Corey M. Ellis (coreye@xxxxxxxxx)
Date: Sun Apr 15 2001 - 00:14:04 GMT-3

   
Hi all,

I know External LSAs keep up the ISDN line even with a OSPF-demand circuit.
And I know if you block ospf in your dialer-list as such:

access-list 101 deny ospf any any
access-list 101 permit ip any any
dialer-list 1 protocol ip list 101

My question is if your ISDN line is serving as a backup to a frame-relay
connection say between r1<--->r2. when s0 goes down the bri0 will become
the backup line for r1<--->r2. The requirement is to still see all the
routes through the bri0 just like when the s0 was up.

If you block ospf, the adjacency won't be made when the backup kicks in.
How do you keep the line quiet, but still have full routes when the primary
interface fails.

Thanks
Corey M. Ellis

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