HP MSR2000/3000/4000 Router Series IP Multicast Command Reference

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ipv6 pim neighbor-policy
Use ipv6 pim neighbor-policy to configure a legal source address range for hello messages to guard
against hello message spoofing.
Use undo ipv6 pim neighbor-policy to restore the default.
Syntax
ipv6 pim neighbor-policy acl6-number
undo ipv6 pim neighbor-policy
Default
No source address range for hello messages is configured. All the received hello messages are
considered legal.
Views
Interface view
Predefined user roles
network-admin
Parameters
acl6-number: Specifies an IPv6 basic ACL by its number in the range of 2000 to 2999.
Usage guidelines
Use an IPv6 basic ACL to filter hello messages based on the IPv6 source addresses. If you specify a VPN
instance in the ACL, the ACL does not take effect. The other optional parameters except the time-range
keyword and the fragment keyword are ignored.
Examples
# Configure a legal source address range for hello messages on Ethernet 1/1, so that only the devices
on the FE80:101::101/64 subnet can become PIM neighbors of this router.
<Sysname> system-view
[Sysname] acl ipv6 number 2000
[Sysname-acl6-basic-2000] rule permit source fe80:101::101 64
[Sysname-acl6-basic-2000] quit
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] ipv6 pim neighbor-policy 2000
ipv6 pim require-genid
Use ipv6 pim require-genid to enable dropping hello messages without the generation ID options.
Use undo ipv6 pim require-genid to restore the default.
Syntax
ipv6 pim require-genid
undo ipv6 pim require-genid
Default
Hello messages without the generation ID options are accepted.