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crp-policy (IPv6 PIM view)

Syntax crp-policy acl6-number

undo crp-policy

View IPv6 PIM view

Parameter acl6-number: Advanced IPv6 ACL number, in the range of 3000 to 3999. When the IPv6 ACL is defined, the source keyword in the rule command specifies the IPv6 address of a C-RP and the destination keyword specifies the IPv6 address range of the IPv6 multicast groups that the C-RP will serve.

Description Use the crp-policycommand to configure a legal C-RP address range and the range of served IPv6 multicast groups, so as to guard against C-RP spoofing.

Use the undo crp-policycommand to remove the restrictions in C-RP address ranges and the ranges of served IPv6 multicast groups.

By default, there are no restrictions on C-RP address ranges and the address ranges of served groups, namely all received C-RP messages are assumed to be legal.

Example # Configure a C-RP address range so that only routers in the address range of 2001::2/64 can be C-RPs.

<Sysname> system-view [Sysname] acl ipv6 number 3000

[Sysname-acl6-adv-3000] rule permit ipv6 source 2001::2 64

[Sysname-acl6-adv-3000] quit [Sysname] pim ipv6 [Sysname-pim6] crp-policy 3000

display pim ipv6 bsr-info

Syntax display pim ipv6 bsr-info

View Any view

Parameter None

Description Use the display pim ipv6 bsr-infocommand to view the BSR information in the IPv6 PIM domain and the locally configured C-RP information in effect.

Related command: c-bsr (IPv6 PIM view) and c-rp (IPv6 PIM view).

Example # View the BSR information in the IPv6 PIM-SM domain and the locally configured C-RP information in effect.

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3Com MSR 50, MSR 30 Crp-policy IPv6 PIM view, Display pim ipv6 bsr-info, Syntax crp-policy acl6-number Undo crp-policy