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New Member

Block spoke to spoke communication in same vrf

Prerequisite

a) Spoke to Spoke traffic should go via HUB

b) Both CE in same vrf.

Now coming to the problem, I have two CE router connected to the same PE router and both are in same vrf (vrf-a), I have configured the routing in such a way that spoke to spoke traffic goes via HUB however with the above scenario its now working as both CE's are connected to the same vrf and when the packet reaches vrf-a , its sees that the destination is directly connected or in case if it’s not directly connected , still it prefers spoke to spoke (Shortest As –path is the tie).

Is there any way I can make spoke to spoke communication via HUB?

Thanks in advance.

Manoj

2 REPLIES
New Member

Block spoke to spoke communication in same vrf

HI

simple solution is to make 2 vrfs, make a vrf a and a vrf a-1 with the same import and export RTs ( only diff RDs on IOS is necessary)

other solutions like policy routing will not work in MPLS/VPN case

regards

alexander

Cisco Employee

Block spoke to spoke communication in same vrf

Hi Manoj,

This is quite extensive, but worth reading for your question

http://tools.ietf.org/html/draft-rekhter-l3vpn-virtual-hub-02

Regards,

Sandip

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