pim neighbor-policy

Use pim neighbor-policy to configure a PIM hello policy.

Use undo pim neighbor-policy to restore the default.

Syntax

pim neighbor-policy ipv4-acl-number

undo pim neighbor-policy

Default

No PIM hello policy exists on an interface, and all PIM hello messages are regarded as legal.

Views

Interface view

Predefined user roles

network-admin

Parameters

ipv4-acl-number: Specifies an IPv4 basic ACL number in the range of 2000 to 2999.

Usage guidelines

A PIM hello policy filters PIM hello messages to guard against hello message spoofing.

When you configure a rule in the IPv4 basic ACL, follow these restrictions and guidelines:

• For the rule to take effect, do not specify the vpn-instance vpn-instance option.

• The source source-address source-wildcard option specifies a source IP address.

• Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Configure a PIM hello policy on VLAN-interface 100 so that only the devices on subnet 10.1.1.0/24 can become PIM neighbors of this switch.

<Sysname> system-view
[Sysname] acl basic 2000
[Sysname-acl-ipv4-basic-2000] rule permit source 10.1.1.0 0.0.0.255
[Sysname-acl-ipv4-basic-2000] quit
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] pim neighbor-policy 2000