Data plane unicast Reverse Path Filtering (uRPF) RFC 2827: Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing RFC 3704: Ingress Filtering for Multihomed Networks Unicast Reverse Path Forwarding for the ISPs Ivan Pepelnjak - Does uRPF Make Sense in Internet Service Provider Networks? MACsec Juniper Deploying MACsec