What is the goal of Unicast Reverse Path Forwarding?
A.
to verify the reachability of the destination address in forwarded packets
B.
to help control network congestion
C.
to verify the reachability of the destination address in multicast packets
D.
to verify the reachability of the source address in forwarded packets
It is a anti-spoofing mechanism. To verify the forwarded packets source ip address. if it is unreachable , then it will be treated as spoof address and discards.
Additional thinking, if we disallow incoming icmp to our servers, whether the URPF drop the packets from the server?
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