On disabling the ICMP broadcast processing, all the packets containing
ICMP sent to broadcast addresses, will be dropped when they reach
the control plane.
About this task
Use these commands to enable or disable the IPv4 ICMP broadcast
feature on the VRF router.
Procedure
-
Enter VRF Router Configuration mode for
a specific VRF context:
enable
configure
terminal
router vrf WORD<1-16>
- Enable IPv4 ICMP broadcast feature, enter:
ip icmp echo-broadcast-request
- Disable IPv4 ICMP broadcast feature, enter:
no ip icmp echo-broadcast-request
- Set the IPv4 ICMP broadcast feature to default state, enter:
default ip icmp
echo-broadcast-request
Note
By default, the IPv4 ICMP broadcast feature is enabled.
- View the IPv4 ICMP broadcast feature state:
