Cisco WS-C3750-48PS-S Software Configuration Manual page 850

Configuring Advanced DVMRP Interoperability Features
Figure 36-8 Only Connected Unicast Routes Are Advertised by Default
151.16.0.0/16
172.34.15.0/24
202.13.3.0/24
176.32.10.0/24
176.32.15.0/24
Src Network
151.16.0/16
172.34.15.0/24 Fa1/0/1 10
202.13.3.0/24
Beginning in privileged EXEC mode, follow these steps to customize the summarization of DVMRP
routes if the default classful autosummarization does not suit your needs. This procedure is optional.
At least one more-specific route must be present in the unicast routing table before a configured
Note
summary address is advertised.
Command
Step 1 configure terminal
Step 2 interface interface-id
Step 3
ip dvmrp summary-address address
mask [metric value]
Step 4
end
Step 5 show running-config
Step 6 copy running-config startup-config
To remove the summary address, use the no ip dvmrp summary-address address mask [metric value]
interface configuration command.
Catalyst 3750 Switch Software Configuration Guide
36-48
DVMRP Report
m = 39
m = 42
m = 40
m = 1
m = 1
DVMRP Route Table
Intf Metric Dist
Fa1/0/1 7
Fa1/0/1 8
176.32.10.0/24
Purpose
Enter global configuration mode.
Specify the interface that is connected to the DVMRP router, and enter
interface configuration command.
Specify a DVMRP summary address.
•
•
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
DVMRP router
Tunnel
Cisco
router
0
0
Fast
Fast
0
Ethernet
Ethernet
1/0/1
1/0/2
176.32.15.0/24
For summary-address address mask, specify the summary IP
address and mask that is advertised instead of the more specific
route.
(Optional) For metric value, specify the metric that is advertised
with the summary address. The default is 1. The range is 1 to 32.
Chapter 36 Configuring IP Multicast Routing
interface tunnel 0
ip unnumbered fastethernet1/0/1
interface fastethernet1/0/1
ip addr 176.32.10.1 255.255.255.0
ip pim dense-mode
interface fastethernet1/0/2
ip addr 176.32.15.1 255.255.255.0
ip pim dense-mode
Unicast Routing Table (10,000 Routes)
Network Intf Metric
176.13.10.0/24 Fa1/0/1 10514432 90
176.32.15.0/24 Fa1/0/2 10512012 90
176.32.20.0/24 Fa1/0/2 45106372 90
Dist
78-16180-02