From: ying chang (ying_c@xxxxxxxxxxx)
Date: Tue Mar 12 2002 - 23:20:20 GMT-3
Which IOS version you are running? Just curious. From your topology, R3 is
ASBR, R4 is ABR. area range command is used in ABR; for ASBR you will need
to use summary-address command. My understanding is ASBR will take the
foreign protocol's routes and summarize them into OSPF, while ABR can go
either way - from area 0 to non backbone area or vice versa. I'm suprised
that R5 could see the summarized route. Can you give us your configs and
output from "show ip route" from R3, R4 and R5, "show ip ospf database",
"debug ip igrp trans" from R3?
If I'm to do this, I would create an additional loopback address on R3 and
redistribute connected/ospf and summarize it to /24 for igrp. area range on
R4 can summarize it to /24, but the summarize route is going into area 0,
which won't help us put the route into igrp.
Thanks,
Chang
>From: EdmondsSG@aol.com
>Reply-To: EdmondsSG@aol.com
>To: ccielab@groupstudy.com
>Subject: the brain has left the building - OSPF area range - strange
>stuff
>Date: Tue, 12 Mar 2002 16:33:59 EST
>
>guys and gals,
>
>I'm getting bogged down with the area range command in ospf:
>
>the scene..
>R5
> | igrp
> |
>R3 ------|area1 /29 mask
> |
> R4------R2
> area 0
>
>the link between r3 and r4 is a frame cloud.
>when i configure the area 1 range xxx.xxx.xxx.0 255.255.255 on R3 to get
>the
>/29 into R'5' routing table - it works. But on R4 I see the
>xxx.xxx.xxx.0/29
>as connected route (fine so far..), but also see the xxx.xxx.xxx.0/24 route
>as reachable via R3 !!
>
>split horizon is on the interfaces but i seem to be getting some sort of
>"feedback"
>......or is this normal behaviour?
>
>any ideas before I go potty!!!
>
>
>thanks in advance
>
>si
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