Network Application; Configuring Urpf; Urpf Configuration Example - HP 3600 v2 Series Configuration Manual

Network application

Figure 127 Network diagram
Configure strict URPF between each ISP and its connected users, and loose URPF between ISPs.

Configuring URPF

To configure URPF globally:
Step
1. Enter system view.
2. Enable URPF check globally.
NOTE:
The routing table size decreases by half when URPF is enabled on HP 3600 v2 Switch Series.
•
To prevent loss of routes and packets, URPF cannot be enabled if the number of route entries the switch
•
maintains exceeds half the routing table size.

URPF configuration example

Network requirements
As shown in
check on Switch A and Switch B to prevent source address spoofing attacks.
Command
Figure 128, a client (Switch A) directly connects to the ISP switch (Switch B). Enable URPF
system-view
ip urpf { loose | strict }
400
Remarks
N/A
Disabled by default