From: Sam.MicroGate@xxxxxxxxxxxxxx
Date: Tue Apr 23 2002 - 10:54:41 GMT-3
Hello all,
Last night I worked in a distribution lab from fatkid.com. In this lab I had
the following problem:
Area 2 is configured a virtual area between routers R5 and R4. I used area 0
range command to summarize the /28 subnet into area 2. Now the problem is R4
receive both routes the 172.10.7.0/28 as O and 172.10.7.0/24 as O IA and
strangely choose the first to install in the routing table. The /24 subnet
gets suppressed and does not make it to the routing table. Shouldn't I see
both routes in R4 because OSPF supports VLSM? Why OSPF choose the route with
the longer mask and ignored the one with shorter mask? If this the default
behavior, How can I make the summary address /24 reach R4. Thank you all for
your help.
172.10.7.0/28 172.10.128.0/26 LB0:172.10.5.4/24
R2------------------------------R5------------------------------R4----------
-------------------
area 0 area 2 area 3
Frame Relay Ethernet LB of R4
At R5:
area 0 range 172.10.7.0 255.255.255.0
Elsayed Mohamed
Sr. Network Consultant
Microgateds, Inc.
732-936-4413
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:58:17 GMT-3