mohammedmahmoud Wed, 08/29/2007 - 23:56
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Hi,


This can be done via central service MPLS VPNs, having each site in a VRF and only having site A and B communicating to site C with out being able to communicate with each other.


Example:


ip vrf A

rd 123:1

route-target both 123:121

route-target export 123:123

route-target import 123:124


ip vrf B

rd 123:2

route-target both 123:122

route-target export 123:123

route-target import 123:124


ip vrf c

rd 123:3

route-target both 123:125

route-target export 123:124

route-target import 123:123


NOTE The use of 123:121, 123:122 and 123:123 is to obey the constrain of IOS12.0T that at least one Import RTs should be equal to one of the export RTs.


HTH,

Mohammed Mahmoud

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