Disable IPv6 ICMP Multicast

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 disable the IPv6 ICMP multicast on the global router. By default, the IPv6 ICMP multicast feature is enabled.

Procedure

  1. Enter either Global Configuration mode or VRF Router Configuration mode for a specific VRF context:

    enable

    configure terminal

    Optional: router vrf WORD<1-16>

  2. Disable IPv6 ICMP multicast, enter:

    no ipv6 icmp echo-multicast-request

  3. View the IPv6 ICMP multicast state:

    show ipv6 global [vrf WORD<1–16> | vrfids WORD<0–512>]