Here is recent discussion about it with a suggestion for solution:
http://www.gossamer-threads.com/lists/mythtv/users/515520#515520
Using vimage to enhance the virtualized network interfaces:
http://imunes.tel.fer.hr/virtnet/
some tutorial about it:
http://bsdbased.com/2009/12/06/freebsd-8-vimage-epair-howto
http://www.gossamer-threads.com/lists/mythtv/users/515520#515520
Using vimage to enhance the virtualized network interfaces:
http://imunes.tel.fer.hr/virtnet/
some tutorial about it:
http://bsdbased.com/2009/12/06/freebsd-8-vimage-epair-howto