Configuring an IPv6 PIM hello policy

About IPv6 PIM hello policies

This feature enables the device to filter IPv6 PIM hello messages by using an ACL that specifies the packet source addresses. It is used to guard against IPv6 PIM message attacks and to establish correct IPv6 PIM neighboring relationships.

If hello messages of an existing IPv6 PIM neighbor are filtered out by the policy, the neighbor is automatically removed when its aging timer expires.

Procedure

  1. Enter system view.

    system-view

  2. Enter interface view.

    interface interface-type interface-number

  3. Configure an IPv6 PIM hello policy.

    ipv6 pim neighbor-policy ipv6-acl-number

    By default, no IPv6 PIM hello policy is configured on an interface. All IPv6 PIM hello messages are regarded as legal.