Cisco Systems 3130 User Manual
44-51
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 44 Configuring IP Multicast Routing
Configuring Advanced DVMRP Interoperability Features
Figure 44-9
On Connected Unicast Routes Are Advertised by Default
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.
routes if the default classful autosummarization does not suit your needs. This procedure is optional.
Note
At least one more-specific route must be present in the unicast routing table before a configured
summary address is advertised.
summary address is advertised.
To remove the summary address, use the no ip dvmrp summary-address address mask [metric value]
interface configuration command.
interface configuration command.
Network
Intf
Metric
Dist
176.13.10.0/24 Gi1/0/1 10514432 90
176.32.15.0/24 Gi1/0/2 10512012 90
176.32.20.0/24 Gi1/0/2 45106372 90
176.32.15.0/24 Gi1/0/2 10512012 90
176.32.20.0/24 Gi1/0/2 45106372 90
Src Network
Intf
Metric Dist
151.16.0/16
Gi1/0/1
7
0
172.34.15.0/24
Gi1/0/1
10
0
202.13.3.0/24
Gi1/0/1
8
0
151.16.0.0/16
m = 39
172.34.15.0/24
m = 42
202.13.3.0/24
m = 40
176.32.10.0/24
m = 1
176.32.15.0/24
m = 1
DVMRP router
Cisco
router
Tunnel
Gigabit
Ethernet
1/0/1
176.32.10.0/24
Gigabit
Ethernet
1/0/2
Ethernet
1/0/2
176.32.15.0/24
DVMRP Report
159888
DVMRP Route Table
Unicast Routing Table (10,000 Routes)
interface tunnel 0
ip unnumbered gigabitethernet1/0/1
ip unnumbered gigabitethernet1/0/1
interface gigabitethernet1/0/1
ip addr 176.32.10.1 255.255.255.0
ip pim dense-mode
ip addr 176.32.10.1 255.255.255.0
ip pim dense-mode
interface gigabitethernet1/0/2
ip addr 176.32.15.1 255.255.255.0
ip pim dense-mode
ip addr 176.32.15.1 255.255.255.0
ip pim dense-mode
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface interface-id
Specify the interface that is connected to the DVMRP router, and enter
interface configuration command.
interface configuration command.
Step 3
ip dvmrp summary-address address
mask [metric value]
mask [metric value]
Specify a DVMRP summary address.
•
For summary-address address mask, specify the summary IP
address and mask that is advertised instead of the more specific
route.
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.
with the summary address. The default is 1. The range is 1 to 32.
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.