[vlc-devel] [PATCH] live555: fix the subtitles issue
remi at remlab.net
Mon Dec 30 14:52:43 CET 2013
Le lundi 30 décembre 2013, 14:40:30 Gilles Chanteperdrix a écrit :
> > You _cannot_ use RTSP with unicast UDP behind a NAT (unless the NAT has an
> > RTSP ALG). Period.
> No, it can be made to work. I know how, I already explained it on this list.
To traverse a NAT or a stateful firewall, you need cooperation from either the
server (hole punching) or the NAT/firewall (ALG or port forwarding). The RTSP
specification has no provisions for the server sid.
So no, you cannot reliably traverse a NAT with the standardized RTSP protocol.
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