How do I enable IP multicast support?

Multicast host operations are fully supported in FreeBSD 2.0 and later by default. If you want your box to run as a multicast router, you will need to recompile your kernel with the MROUTING option and run mrouted(8). FreeBSD 2.2 and later will start mrouted(8) at boot time if the flag mrouted_enable is set to "YES" in /etc/rc.conf.

MBONE tools are available in their own ports category, mbone. If you are looking for the conference tools vic and vat, look there!
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