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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Configuring a Multicast Device to Deny MLD Packets Without the Router-Alert Option

Configuring a Multicast Device to Deny MLD Packets Without the Router-Alert Option

If user hosts do not want to receive MLD packets without the Router-Alert option, configure the multicast device directly connected to the user hosts to deny all MLD packets without the Router-Alert option.

Context

By default, a router does not check the Router-Alert option in received MLD packets, so it accepts and processes all received MLD packets.

You can perform configurations either globally or on an interface.

  • Global configuration: takes effect on all interfaces.

  • Interface-specific configuration: takes precedence over the global configuration. If an interface-specific configuration is not available, the interface uses the global configuration.

Procedure

  • Globally configure a multicast device to deny MLD packets without the Router-Alert option.
    1. Run system-view

      The system view is displayed.

    2. Run mld

      The MLD view is displayed.

    3. Run require-router-alert

      The multicast device is configured to accept and process only MLD packets with the Router-Alert option and discard those without the Router-Alert option.

    4. Run commit

      The configuration is committed.

  • Configure an interface on a multicast device to deny MLD packets without the Router-Alert option.
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The interface view is displayed.

    3. Run mld require-router-alert

      The interface is configured to accept and process only MLD packets with the Router-Alert option and discard those without the Router-Alert option.

    4. Run commit

      The configuration is committed.

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Updated: 2019-01-03

Document ID: EDOC1100055017

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