
Configuring IP Multicasting and Multimedia Services
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Specifying the Encapsulation Mode for Tunneled Datagrams
By default, DVMRP encapsulates a tunneled multicast datagram in an IP unicast
datagram. Using the BCC or Site Manager, you can configure DVMRP to loosely
encapsulate multicast datagrams using the LSSR option. See RFC 1075 for
information about the LSSR option, which is provided for backward
compatibility.
Using the BCC
To reset the encapsulation mode, navigate to a DVMRP tunnel prompt (for
example,
box; tunnels; dvmrp/2.2.2.2/2.2.4.5)
and enter:
data-encapsulation
<mode>
mode
is one of the following:
ip-in-ip
(default)
lssr
For example, the following command specifies LSSR encapsulation for the
tunnel:
dvmrp/2.3.4.5/4.4.2.3#
data-encapsulation lssr
dvmrp/2.3.4.5/4.4.2.3#
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