A、It works well with a multihomed environment.
B、It will inspect IP packets that are encapsulated in tunnels, such as GRE,LT2P,or PPTP.
C、uRPF is performed within the CEF switching path.
D、There might be a problem with DHCP as Unicast RPF is blocking packets with a 0.0.0.0 sourceaddress.
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