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- <FORM>
- <H2>Multicast Routing Configuration</H2>
- <P>
- The Internet community has reserved a set of addresses, called multicast
- addresses, that behave differently from normal network addresses. Packets
- sent to multicast addresses are recognized only by the systems
- that have subscribed to recognize them. Subscription information is handled
- by a multicast routing protocol called Distance-Vector Multicast Routing
- Protocol (DVMRP). The multicast daemon maintains a list of all active multicast
- sessions and the clients that subscribe to them. It sends the multicast packets
- from the sending system to each client using the shortest path.
- </P>
- <P>
- Some router systems do not handle multicast traffic. To prevent these
- routers from obstructing multicast messages, you can set up a tunnel so
- that these routers are bypassed.
- </P>
- <P>
- Use the Multicast Routing form to set the following parameters:
- </P>
- <P>
- <STRONG>Enable multicast routing:</STRONG> This selection turns multicast
- routing on and off for this system. Select <VAR>Yes</VAR> to turn on multicast
- routing and <VAR>No</VAR> to turn it off.
- </P>
- (Default value: No)
- <P>
- <STRONG>Enable tunnel:</STRONG> This selection sets up a tunnel from your
- networks to a remote network through a router that does not route multicast
- traffic. Select <VAR>Yes</VAR> to enable the tunnel and <VAR>No</VAR> to
- disable it.
- </P>
- (Default value: No)
- <P>
- <STRONG>Interface:</STRONG> This selection specifies the source side of a routing
- tunnel. Select the network interface on this system that is connected to the network
- that requires a tunnel.
- </P>
- (Default value: none)
- <P>
- <STRONG>Remote IP address:</STRONG> This selection specifies the destination
- side of a routing tunnel. Enter the Internet address of the system on the
- destination end of the multicast transmission. Use dotted decimal (such as
- 1.2.3.4) or hexadecimal (such as 0x01020304) notation in your entry.
- </P>
- (Default value: none)
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