[AG-TECH] "waiting for video" with unicast
Robert Olson
olson at mcs.anl.gov
Thu Feb 17 09:51:40 CST 2005
On Feb 17, 2005, at 9:41 AM, Fred Dech wrote:
> i've run into the same problem on a unicast network. bridging, RAT
> received
> audio, but VIC did not receive any video. other clients connected to
> the
> same venue could see both the bridged video and audio. i've not yet
> tracked down the problem. when/if i do, i will share the results.
That's one description of the problems one sees with firewalls that
have reflexive ACLs installed - outgoing traffic on a port enables
incoming traffic on that port. Since rat uses the same source and
destination port, it will work properly. Vic uses different source and
dest ports, so the traffic won't flow back in.
--bob
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