DVMRP Tunnels
DVMRP (Distance Vector Multicast Routing Protocol) tunnels encapsulate multicast packets IP unicast packets. This technique allows two multicast routers to exchange multicast packets even when they are separated by routers that cannot forward multicast packets.
For each DVMRP tunnel you create, you must provide the IP address of the interface that forms the local endpoint of the tunnel and the IP address of the multicast router that is at the remote end of the tunnel forming the remote endpoint of the tunnel.
Note
The remote multicast router must support
When you have created the DVMRP tunnel interface, set all other DVMRP multicast configuration parameters from the DVMRP configuration page.
To create a DVMRP tunnel
1.Click Interfaces under Configuration > Interface Configuration in the tree view.
2.Click Tunnels in the Physical column.
3.From the pulldown menu in the Create a new tunnel interface with encapsulation, select
DVMRP.
4.Click Apply.
Each time you select a tunnel encapsulation and click Apply, a new tunnel appears in the table.
5.Click the logical interface name in the Interface column of the Logical interfaces table; this takes you to the interface page for the specified tunnel. Example: tun0c1.
6.Enter the IP address of the local end of the DVMRP tunnel in the Local address text box.
The local address must be one of the systems interface IP addresses and must also be the remote address configured on the DVMRP tunnel on the remote router.
7.Enter the IP address of the remote end of the DVMRP tunnel in the Remote Address text box.
The remote address must be the IP address of the multicast router at the remote end of the DVMRP tunnel. It cannot be one of the system’s interface addresses.
8.(Optional) Change the interface’s logical name to a more meaningful name by typing the preferred name in the Logical name text box.
Click Apply.
9.(Optional) Add a comment to further define the logical interfaces function in the Comments text box.
Click Apply.
10.To make your changes permanent, click Save.
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