Enabling And Disabling Dvmrp - 3Com CoreBuilder 2500 User Manual

11
Enabling and
Disabling DVMRP
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Default
A
DMINISTERING
IP M
ULTICAST
This chapter describes how to set up your CoreBuilder
use IP multicast routing, including information about these tasks:

Enabling and Disabling DVMRP

Enabling and Disabling IGMP
Administering IP Multicast Interfaces
Administering Multicast Tunnels
Displaying Routes
Displaying the Multicast Cache
Before you define any IP multicast interfaces, you must first define IP
interfaces and routes, as described in Chapter 10.
For more information about how IP multicast routing works, see
Chapter 5, "Routing with IP Multicast."
DVMRP (Distance Vector Multicast Routing Protocol) is similar to the IP
Routing Information Protocol (RIP). Multicast routers exchange distance
vector updates that contain lists of destinations and the distance in hops
to each destination. They maintain this information in a routing table.
To run multicast routing, you enable DVMRP, which enables it on all IP
interfaces that have not been disabled. To enable or disable DVMRP, from
the top level of the Administration Console, enter:
ip multicast dvmrp
The interface prompts you to enable or disable DVMRP.
The default is disabled.
Example:
Enter DVMRP mode (disabled, enabled) [disabled]: enabled
R
OUTING
™
2500 system to