3com 5500-ei pwr Reference Guide

 

3-1 

bsr-policy acl-number 

undo bsr-policy 

PIM view 

acl-number: ACL number to be used in the BSR filtering policy, in the range of 2000 to 2999.  

Use the bsr-policy command to limit the range of legal BSRs to prevent BSR spoofing.  

Use the undo bsr-policy command to restore the default. 

By default, no range limit is configured, namely all received messages are considered legal. 

The source keyword in the rule command is translated into BSR address in the bsr-policy command.  

# Configure a BSR filtering policy on devices to allow only the multicast devices on subnet 101.1.1.1/32 

to become BSR.  

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] multicast routing-enable 

[Sysname] pim 

[Sysname-pim] bsr-policy 2000 

[Sysname-pim] quit 

[Sysname] acl number 2000 

[Sysname-acl-basic-2000] rule 0 permit source 101.1.1.1 0