Hi Todd,
What you are describing is uRPF VRF mode. This was phase 3 of the uRPF work.
Russ White and I worked on it while at Cisco.
Given that you are setting up prefix filters with your peers, you can add to
the peering agreement that you will only accept packets whose source addresses
https://en.wikipedia.org/wiki/Reverse_path_forwarding#Loose_mode towards
transit.
https://en.wikipedia.org/wiki/Reverse_path_forwarding#Strict_mode towards
customers.
Peers... *shrugs*.
-
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
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