PLANET XGS3-24040 - Manual (Page 279)

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17.4.2 ip urpf enable
Command:
ip urpf enable {loose | strict} {allow-default-route}
no ip urpf enable
Function:
Enable the URPF function on the port.
Parameters:
loose：the loose mode;
strict：the strict mode;
allow-default-route：allow the default route.
Command mode:
Port Mode
Default:
The URPF function is disabled on the port by default.
Usage Guide:
Users should specify the mode: loose or strict.
Example:
Switch(config)#interface ethernet 1/4
Switch(Config-If-Ethernet1/4)#ip urpf enable strict
Switch(Config-If-Ethernet1/4)#interface ethernet 1/5
Switch(Config-If-Ethernet1/5)#ip urpf enable loose
Switch(Config-If-Ethernet1/5) #interface ethernet 1/6
Switch(Config-If-Ethernet1/6)#ip urpf enable loose allow-default-route
Switch(Config-If-Ethernet1/6)#interface ethernet 1/7
Switch(Config-If-Ethernet1/7)#ip urpf enable strict allow-default-route