OSPF virtual link removing summary address

From: Ng, Kim Seng David (David) (ksng@xxxxxxxxx)
Date: Sat Jun 22 2002 - 01:06:00 GMT-3


   
Hi Group,

        I have a scenario which I think I may have missed something. The scenar
io is as follows:

        Lo0(Area3)--R1----ethernet(Area2)---R3---frame-relay(Area0)------R4
                        | | |
                        | | |
                        IGRP Lo0(Area2) R2
                        |
                        |
                        R9

All network at major network 170.10.x.x. The IGRP network and loopback interfac
es are /24. The ethernet at Area2 is /26 and the frame-relay at Area0 is /28. T
o redistribute the ethernet network to IGRP, I did a 'area 2 range' at R1 to /2
4. I could see the Null0 route at R1 and it was redistributed successfully to R
9. Next is the frame-relay network. I did 'area 0 range' at R3 and I could see
the Null0 route at R3 and it also appeared on R1. Hence, R9 got the redistribut
ed frame-relay network too.

However, all this is accomplished before setting up the ospf virtual link betwe
en R1 and R3 for R1's Lo0 which is at Area 3. When I set up the virtual link, t
he /24 route to the frame-relay network just went missing in R1 routing table a
lthough the Null0 route still appears in R3 where I did the 'area 0 range' comm
and. Instead, the /28 route of the frame-relay network appeared on R1 routing t
able. When I removed the virtual link between R1-R3, the /24 frame-relay route
reappeared on R1 but not the /28. The ethernet Null0 route is not affected.

        Am I missing something about virtual links?

Thanks
David



This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:40 GMT-3