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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter24 Configuring IP Multicast Routi ng Configuring Basic DVMRP Interoperability Features
Beginning in privileged EXEC mode, follow these steps to set up an administratively-scoped boun dary:
To remove the boundary, use the no ip multicast boundary interface configuration command.
This example shows how to set up a boundary for all administr ative ly-s cop ed a dd resses:
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 gigabitethernet0/1
Switch(config-if)# ip multicast boundary 1
Configuring Basic DVMRP Interoperability Features
This section describes how to perform basic configuration tasks on your multilayer switch to
interoperate with DVMRP devices. It contains this configuration information:
•Configuring DVMRP Interoperability, page 24-44
•Controlling Unicast Route Advertisements, page 24-44
•Configuring a DVMRP Tunnel, page 24-46
•Advertising Network 0.0.0.0 to DVMRP Neighbors, page 24-48
•Responding to mrinfo Requests, page 24-49
For more advanced DVMRP features, see the “Configuring Advanced D VMRP Intero perabil ity
Features” section on page 24-50.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 access-list access-list-number {deny |
permit} source [source-wildcard]Create a standard access list, repeating the command as many times as
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.
Step3 interface interface-id Enter interface configuration mode, and specify the interface to be
configured.
Step4 ip multicast boundary
access-list-number Configure the boundary, specifying the access list you created in Step 2.
Step5 end Return to privileged EXEC mode.
Step6 show running-config Verify your entries.
Step7 copy running-config startup-config (Optional) Save your entries in the configuration file.