VRF-lite in a pure OSPF network

Hi all
I got some issues at the moment with VRF-lite and the capability vrf-lite
command in a pure OSPF network. There is plenty of documentation around for
VRF-Lite in combantion with OSPF and BGP, but I cant find something for
OSPF only.

Just a simple layout:

R1 -- R2 -- R3

   - R14s loopback is playing the area 0, Loopback 1 is redistributed into
   OSPF (just to have an External LSA)
   - R1, R2 and R3 are all in Area 123 -> totaly stubby area
   - R2 is configured for VRF lite on both interfaces (R1/R3)

So as it is now, R2 is not able to see (as to put in his routing table) any
Inter-Area Routes (R1s lo0 interface, Summary LSAs), even though its in the
OSPF Database and it is advertising all routes to R3. I know the command
capability vrf-lite does fix this, but I4d like to know why the router
behaves like this and cant find any answer so far. Kinda driving me nuts :-D

Any help would be greatly appreciated

best regards

Michel

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Received on Thu Jan 12 2012 - 17:24:15 ART