• Author : Harsh


Support for IPv4 uRPF

Description IPv4 Unicast Reverse Path Forwarding (uRPF) can help limit malicious IPv4 traffic on a network. uRPF works by enabling the router to verify reachability (routing) of the source IP address (SIP) in the packet being forwarded. If the SIP is determined to not be a valid address, the packet is dropped. Two modes are supported: loose mode strict with allow-default mode. In the strict with allow-default mode, the packet must be received on the same L3 interface that the router would use to route the return packet. The packets can also come in on the interface through which the...
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