On disabling the ICMP multicast processing, ICMPv6 Echo Request
packets sent to IPv6 multicast addresses are dropped when they reach
the control plane.
About this task
Use this procedure to enable or disable the IPv6 ICMP multicast
on the global router.
Procedure
-
Enter either Global Configuration mode
or VRF Router Configuration mode for a specific VRF context:
enable
configure
terminal
Optional: router vrf WORD<1-16>
- Enable IPv6 ICMP multicast,
enter:
ipv6
icmp echo-multicast-request
- Disable IPv6 ICMP multicast,
enter:
no ipv6
icmp echo-multicast-request
- Set IPv6 ICMP multicast
to default state, enter:
default ipv6 icmp
echo-multicast-request
Note
By default, the IPv6 ICMP multicast feature is enabled.
- View the IPv6 ICMP
multicast state:
show
ipv6 global [vrf WORD<1–16> | vrfids WORD<0–512>]
