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
Enter system view.
system-view
Enter interface view.
interface interface-type interface-number
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.