Command Manual – MulticastH3C S7500E Series Ethernet Switches Chapter 4 PIM Configuration Commands4-12Parametersacl-number: Advanced ACL number, in the range of 3000 to 3999. When the ACL isdefined, the source keyword in the rule command specifies the address of a C-RP andthe destination keyword specifies the address range of the multicast groups that theC-RP will serve.DescriptionUse the crp-policy command to configure a legal C-RP address range and the rangeof served multicast groups, so as to guard against C-RP spoofing.Use the undo crp-policy command to remove the restrictions in C-RP address rangesand the ranges of served multicast groups.By default, there are no restrictions on C-RP address ranges and the address ranges ofserved groups, namely all received C-RP messages are accepted.Examples# Configure a C-RP address range and a range of served multicast groups so that onlyrouters in the address range of 1.1.1.1/32 can be C-RPs and these C-RPs can serveonly multicast groups in the address range of 225.1.0.0/16. system-view[Sysname] acl number 3000[Sysname-acl-adv-3000] rule permit ip source 1.1.1.1 0 destination 225.1.0.00.0.255.255[Sysname-acl-adv-3000] quit[Sysname] pim[Sysname-pim] crp-policy 30004.1.15 display pim bsr-infoSyntaxdisplay pim bsr-infoViewAny viewParametersNoneDescriptionUse the display pim bsr-info command to view the BSR information in the PIMdomain and the locally configured C-RP information in effect.Related commands: c-bsr, c-rp.
