Cisco Catalyst 3120 Software Manual page 1036

Configuring Basic DVMRP Interoperability Features
Command
Step 4 ip dvmrp metric metric [list
access-list-number] [[protocol process-id]
| [dvmrp]]
Step 5
end
Step 6
show running-config
Step 7 copy running-config startup-config
To disable the metric or route map, use the no ip dvmrp metric metric [list access-list-number]
[[protocol process-id] | [dvmrp]] or the no ip dvmrp metric metric route-map map-name interface
configuration command.
A more sophisticated way to achieve the same results as the preceding command is to use a route map
(ip dvmrp metric metric route-map map-name interface configuration command) instead of an access
list. You subject unicast routes to route-map conditions before they are injected into DVMRP.
This example shows how to configure DVMRP interoperability when the PIM device and the DVMRP
router are on the same network segment. In this example, access list 1 advertises the networks
(198.92.35.0, 198.92.36.0, 198.92.37.0, 131.108.0.0, and 150.136.0.0) to the DVMRP router, and access
list 2 prevents all other networks from being advertised (ip dvmrp metric 0 interface configuration
command).
Switch(config-if)# interface gigabitethernet1/0/1
Switch(config-if)# ip address 131.119.244.244 255.255.255.0
Switch(config-if)# ip pim dense-mode
Switch(config-if)# ip dvmrp metric 1 list 1
Switch(config-if)# ip dvmrp metric 0 list 2
Switch(config-if)# exit
Switch(config)# access-list 1 permit 198.92.35.0 0.0.0.255
Switch(config)# access-list 1 permit 198.92.36.0 0.0.0.255
Switch(config)# access-list 1 permit 198.92.37.0 0.0.0.255
Switch(config)# access-list 1 permit 131.108.0.0 0.0.255.255
Switch(config)# access-list 1 permit 150.136.0.0 0.0.255.255
Switch(config)# access-list 1 deny
Switch(config)# access-list 2 permit 0.0.0.0 255.255.255.255
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
44-42
Purpose
Configure the metric associated with a set of destinations for DVMRP
reports.
• For metric, the range is 0 to 32. A value of 0 means that the route
is not advertised. A value of 32 is equivalent to infinity
(unreachable).
(Optional) For list access-list-number, enter the access list number
•
created in Step 2. If specified, only the multicast destinations that
match the access list are reported with the configured metric.
(Optional) For protocol process-id, enter the name of the unicast
•
routing protocol, such as eigrp, igrp, ospf, rip, static, or dvmrp,
and the process ID number of the routing protocol. If specified,
only routes learned by the specified routing protocol are advertised
in DVMRP report messages.
• (Optional) If specified, the dvmrp keyword allows routes from the
DVMRP routing table to be advertised with the configured metric
or filtered.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
0.0.0.0 255.255.255.255
Chapter 44 Configuring IP Multicast Routing
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