Enabling or disabling 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 enable or disable the IPv6 ICMP multicast on the global router.

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. Enable IPv6 ICMP multicast, enter:

    ipv6 icmp echo-multicast-request

  3. Disable IPv6 ICMP multicast, enter:

    no ipv6 icmp echo-multicast-request

  4. Set IPv6 ICMP multicast to default state, enter:
    default ipv6 icmp echo-multicast-request
    Note

    Note

    By default, the IPv6 ICMP multicast feature is enabled.

  5. View the IPv6 ICMP multicast state:

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