Configuring PIM-SM Register Messages
You can configure filtering policies for Register messages on all the devices that may become Rendezvous Points (RPs). By default, the checksum is calculated based on the entire Register message. You can configure the device to calculate the checksum based on only the header of a Register message.
Procedure
- Access the system view.
- Create an advanced ACL and access its view.
acl [ number ] acl-number [ vpn-instance vpn-instance-name ]
- Configure rules for the advanced ACL.
rule [ rule-id ] { permit | deny } protocol [ source { source-ip-address { 0 | source-wildcard } | address-set address-set-name | any } | destination { destination-ip-address { 0 | destination-wildcard } | address-set address-set-name | any } ] *
Run the rule command, set the source parameter to a multicast source address, and set the destination parameter to a multicast group address.
- Return to the system view.
- Access the PIM view.
pim [ vpn-instance vpn-instance-name ]
- Configure a policy for filtering Register messages.
register-policy advanced-acl-number
The RP applies the policy to filter received Register messages.
- If a Register message matches an ACL rule and the action is permit, the RP permits this message.
- If a Register message matches an ACL rule and the action is deny, the RP denies this message.
- If a Register message does not match any ACL rule, the RP denies this message.
- If a specified ACL does not exist or does not contain rules, the RP denies all Register messages.
- Calculate the checksum only according to the header of
a Register message.
By default, the checksum is calculated according to the entire message.