
Configuring IP Multicasting and Multimedia Services
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Specifying a TTL
By default, DVMRP assigns a TTL value of 1 to a tunnel. This value is the
minimum IP TTL required for a multicast datagram to be forwarded out this
tunnel. You can use Site Manager to assign a value from 1 to 254.
Use this value to control the scope of the datagrams. If the IP TTL is less than the
threshold value you specify, the router drops the datagram.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose IP. The IP menu opens.
3. Choose Multicast. The Multicast menu opens.
4. Choose DVMRP. The DVMRP menu opens.
5. Choose Tunnel. The DVMRP Tunnel Parameters window
opens.
6. Set the Threshold parameter. Click on
Help or see the parameter description on
page A-12.
7. Click on Apply, and then click on Done. You return to the Configuration Manager
window.
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