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DES-7200 Configuration Guide Chapter 6 URPF Configuration
6-11
Note
By default, the drop rate notification threshold is 1000pps. The user
may adjust the drop rate notification threshold according to the
actual situations of the network.
Caution
1. Drop rate monitoring is only effective in the interface configuration
mode, and is not supported in the global configuration mode.
2. In the interface configuration mode, the drop rate will be
calculated according to the messages dropped by the interface after
URPF check is enabled.
Configuration example:
# Perform strict URPF check of messages received by interface GigabitEthernet 0/21; no need
to use default route for URPF check; monitor URPF drop rate via SNMP Trap; drop rate
notification threshold is configured to 500pps; the SNMP host to receive Trap messages is
192.168.12.219.
DES-7200# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
DES-7200(config)# ip verify urpf notification threshold 500
DES-7200(config)# snmp-server enable traps urpf
DES-7200(config)# snmp-server host 192.168.12.219 public urpf
DES-7200(config)# interface gigabitEthernet0/21
DES-7200(config-if)# no switchport
DES-7200(config-if)# ip verify unicast source reachable-via rx
6.3.4 View URPF
configurations
URPF provides the following command to display various configurations and statistics.
Command Function
show ip urpf [interface interface-name]
Display URPF configurations and
statistics
Furthermore, URPF also provides the following commands to clear URPF statistical
information:
Command Function
clear ip urpf [interface interface-name]
Clear the statistics of packets
dropped in URPF check