R211x-HP Flexfabric 11900 IP Multicast Command Reference

72
Default
No restrictions are defined for the legal C-RP address range and the multicast group range, and all
received C-RP messages are regarded legal.
Views
PIM view
Predefined user roles
network-admin
mdc-admin
Parameters
acl-number: Specifies an IPv4 advanced ACL number 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 the time-range keyword and the fragment
keyword 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
# On the public network, configure the legal C-RP address range to 1.1.1.1/24 and the multicast group
ra n g e t o 225 .1.1.0 / 24 , s o t h a t o n l y d e vi c e s i n t h e a d d r e s s r a n g e o f 1.1.1.1 / 24 c a n b e C - R Ps f o r t h e
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 interface register-tunnel
Use display interface register-tunnel to display information about the register-tunnel interface.
Syntax
display interface register-tunnel [ brief [ down ] ]
display interface [ register-tunnel [ interface-number ] ] [ brief [ description ] ]
Views
Any view