R21xx-HP FlexFabric 11900 IP Multicast Command Reference

57
Predefined user roles
network-admin
Parameters
acl-number: Specifies an IPv4 advanced ACL, in the range of 3000 to 3999.
Usage guidelines
This command guards against C-RP spoofing.
In an ACL, the source field specifies the legal C-RP address range, and the destination field specifies the
multicast group range to which the C–RP is designated. If you specify a VPN instance in the ACL, the ACL
does not take effect. The other optional parameters except time-range are ignored.
The crp-policy command filters the multicast group ranges advertised by C-RPs based on the group
prefixes. For example, if the multicast group range that a C-RP advertises is 224.1.0.0/16 but the
multicast group range that the crp-policy command defines is 224.1.0.0/30, the multicast group range
224.1.0.0/16 can pass.
Examples
# Configure the legal C-RP address range to 1.1.1.1/24 and the multicast group range to which the C-RP
is designated to 225.1.1.0/24, so that only devices in the address range of 1.1.1.1/24 can be C-RPs for the
multicast group range 225.1.1.0/24.
<Sysname> system-view
[Sysname] acl number 3000
[Sysname-acl-adv-3000] rule permit ip source 1.1.1.1 0.0.0.255 destination 225.1.1.0
0.0.0.255
[Sysname-acl-adv-3000] quit
[Sysname] pim
[Sysname-pim] crp-policy 3000
Related commands
c-rp (PIM view)
display pim bsr-info
Use display pim bsr-info to display BSR information in the PIM-SM domain.
Syntax
display pim bsr-info
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display BSR information in the PIM-SM domain.
<Sysname> display pim bsr-info
Scope: non-scoped