Cisco Systems 3750E manual Ip pim rp-address ip-address, Access-list-number override, 42-15

Chapter 42 Configuring IP Multicast Routing

Configuring IP Multicast Routing

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	ip pim rp-address ip-address	Configure the address of a PIM RP.
	[access-list-number] [override]	By default, no PIM RP address is configured. You must configure the IP
		address of RPs on all routers and multilayer switches (including the RP).
		If there is no RP configured for a group, the switch treats the group as
		dense, using the dense-mode PIM techniques.
		A PIM device can be an RP for more than one group. Only one RP address
		can be used at a time within a PIM domain. The access-list conditions
		specify for which groups the device is an RP.
		• For ip-address, enter the unicast address of the RP in dotted-decimal
		notation.
		• (Optional) For access-list-number, enter an IP standard access list
		number from 1 to 99. If no access list is configured, the RP is used for
		all groups.
		• (Optional) The override keyword means that if there is a conflict
		between the RP configured with this command and one learned by
		Auto-RP or BSR, the RP configured with this command prevails.
Step 3
	access-listaccess-list-number {deny	Create a standard access list, repeating the command as many times as
	permit} source [source-wildcard]	necessary.
		• For access-list-number, enter the access list number specified in
		Step 2.
		• The deny keyword denies access if the conditions are matched. The
		permit keyword permits access if the conditions are matched.
		• For source, enter the multicast group address for which the RP should
		be used.
		• (Optional) For source-wildcard, enter the wildcard bits in dotted
		decimal notation to be applied to the source. Place ones in the bit
		positions that you want to ignore.
		Recall that the access list is always terminated by an implicit deny
		statement for everything.
Step 4
	end	Return to privileged EXEC mode.
Step 5
	show running-config	Verify your entries.
Step 6
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To remove an RP address, use the no ip pim rp-addressip-address[access-list-number] [override] global configuration command.

This example shows how to configure the address of the RP to 147.106.6.22 for multicast group 225.2.2.2 only:

Switch(config)# access-list 1 permit 225.2.2.2 0.0.0.0

Switch(config)# ip pim rp-address 147.106.6.22 1

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		42-15