Cisco Systems 3750E manual Configuring Basic Dvmrp Interoperability Features, 42-38

Chapter 42 Configuring IP Multicast Routing

Configuring Basic DVMRP Interoperability Features

Beginning in privileged EXEC mode, follow these steps to set up an administratively-scoped boundary. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	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, the range is 1 to 99.
		• The deny keyword denies access if the conditions are matched. The
		permit keyword permits access if the conditions are matched.
		• For source, enter the number of the network or host from which the
		packet is being sent.
		• (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 3
	interface interface-id	Specify the interface to be configured, and enter interface configuration
		mode.
Step 4
	ip multicast boundary	Configure the boundary, specifying the access list you created in Step 2.
	access-list-number
Step 5
	end	Return to privileged EXEC mode.
Step 6
	show running-config	Verify your entries.
Step 7
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To remove the boundary, use the no ip multicast boundary interface configuration command.

This example shows how to set up a boundary for all administratively-scoped addresses:

Switch(config)# access-list 1 deny 239.0.0.0 0.255.255.255

Switch(config)# access-list 1 permit 224.0.0.0 15.255.255.255

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)#ip multicast boundary 1

Configuring Basic DVMRP Interoperability Features

These sections contain this configuration information:

•Configuring DVMRP Interoperability, page 42-39(optional)

•Configuring a DVMRP Tunnel, page 42-41(optional)

•Advertising Network 0.0.0.0 to DVMRP Neighbors, page 42-42(optional)

•Responding to mrinfo Requests, page 42-43(optional)

For more advanced DVMRP features, see the “Configuring Advanced DVMRP Interoperability Features” section on page 42-43.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
42-38	OL-9775-02