Cisco ASA Series Cli Configuration Manual page 723

Chapter 1 Configuring Multicast Routing
Configuring a Static Rendezvous Point Address
All routers within a common PIM sparse mode or bidir domain require knowledge of the PIM RP
address. The address is statically configured using the pim rp-address command.
Note
The ASA does not support Auto-RP or PIM BSR. You must use the pim rp-address command to specify
the RP address.
You can configure the ASA to serve as RP to more than one group. The group range specified in the
access list determines the PIM RP group mapping. If an access list is not specified, then the RP for the
group is applied to the entire multicast group range (224.0.0.0/4).
To configure the address of the PIM PR, enter the following command:
Command
pim rp-address ip_address [acl] [bidir]
Example:
hostname(config)# pim rp-address
10.86.75.23 [acl1] [bidir]
Note
The ASA always advertises the bidirectional capability in the PIM hello messages, regardless of the
actual bidirectional configuration.
Configuring the Designated Router Priority
The DR is responsible for sending PIM register, join, and prune messages to the RP. When there is more
than one multicast router on a network segment, selecting the DR is based on the DR priority. If multiple
devices have the same DR priority, then the device with the highest IP address becomes the DR.
By default, the ASA has a DR priority of 1. To change this value, enter the following command:
Command
pim dr-priority num
Example:
hostname(config-if)# pim dr-priority 500
Purpose
Enables or reenables PIM on a specific interface.
The ip_address argument is the unicast IP address of the router assigned to
be a PIM RP.
The acl argument is the name or number of a standard access list that
defines with which multicast groups the RP should be used. Do not use a
host ACL with this command.
Excluding the bidir keyword causes the groups to operate in PIM sparse
mode.
Purpose
Changes the designated router priority.
The num argument can be any number ranging from 1 to 4294967294.
Cisco ASA Series CLI Configuration Guide
Customizing Multicast Routing
1-11