uRPF Configuration

show interface urpf show interface urpf \[command] show interface urpf \[purpose] view interface urpf configuration \[view] system view \[use cases] sonic# show interface urpf + + + \| interfaces | status | +=================+==========+ \| ethernet1 | strict | + + + \| vlan123 | strict | + + + \| portchannel0001 | loose | + + + ip urpf ip urpf \[command] ip urpf {strict|loose} no ip urpf \[purpose] configure interface urpf function \[parameter] parameter description strict strict mode, not only checks whether the traffic has a return route, but also verifies whether the return interface is the same as the initial incoming interface of the traffic loose loose mode, only checks whether the traffic has a return route; if it exists, the traffic is permitted; if not, it is discarded \[view] interface view、lag view、vlanif view \[usage scenario] enable the urpf function on the traffic incoming interface to verify whether the traffic has a return route, ensuring that the server is not impacted by unknown traffic \[use cases] sonic(config)# interface ethernet 1 sonic(config if 1)# ip urpf strict