[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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