Is it possible to share a physical interface and a routing by

Hi guys,

Is it possible to share a physical interface and a routing by some VRFs?

I need to connect one local hub CE router R1 and some remote spoke CE routers R2, R3, ..., Rx via GRE tunnel.
I also need to isolate them by using VRF on R1, because remote sites address space can be overlapped.

R1 fa0/0 -------+------- R2
                +------- R3
                +------- .
                +------- .
                +------- .
                +------- Rx

To establish GRE tunnel for each remote spoke CE router, I want to share the physical interface fa0/0 and default route via the interface by those VRFs.
I don't want to configure several loopback interfaces for every each site, because I have only 1 global ip address which is reachable from each remote site.

I would appreciate it if anybody gave me an idea.

Achi :)

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Received on Mon Feb 01 2010 - 15:33:48 ART