Command Manual – NAT&URPF&VPLS 
Quidway S8500 Series Routing Switches  Chapter 2  
URPF Configuration Commands
 
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2-3 
After the urpf enable command is configured, you need to configure packet redirection 
in Ethernet port view to redirect the packets needing URPF check to boards with URPF 
function (the LSBM1NATB board). Refer to Packet Redirection section of QACL part for 
more information. 
 
  Caution: 
Because URPF and virtual private LAN service (VPLS) are mutually exclusive, you 
cannot simultaneously enable URPF and VPLS in the same VLAN interface view. 
 
Example 
# Enable URPF on VLAN ports, and specify the service processor card installed in slot 
2 to implement URPF check. 
[Quidway-Vlan-interface1001] urpf enable to slot 2