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Configuring IP Multicast 727
Distance Vector Multicast Routing Protocol
Distance Vector Multicast Routing Protocol (
DVMRP) exchanges probe packets with all its DVMRP
enabled routers, it establishes two way neighboring relationships, and it builds a neighbor table. It
exchanges report packets and creates a unicast topology table, with which it builds the multicast routing
table. This table is used to route the multicast packets. Since every DVMRP router uses the same unicast
routing protocol, routing loops are avoided.
The DVMRP menu page contains links to web pages that define and display DVMRP parameters and
data. To display this page, click IPv4 Multicast
→
DVMRP in the tree view.
The following web pages are accessible from this menu page:
• DVMRP Global Configuration
• DVMRP Interface Configuration
• DVMRP Configuration Summary
• Next Hop Summary
• Prune Summary
• Route Summary
DVMRP Global Configuration
Use the DVMRP Global Configuration
page to configure global DVMRP settings.
To display the page, click IPv4 Multicast
→
DVMRP
→
Global Configuration in the tree view.
Figure 12-8. DVMRP Global Configuration
The DVMRP Global Configuration page contains the following fields:
•
Admin Mode
— Select Enable or Disable from the drop-down menu. This sets the administrative
status of DVMRP to active or inactive. The default is Disable.
•
Version
— The current value of the DVMRP version string.