<br><font size=2><tt><br>
> In general, you cannot expect RTSP/RTP to work over a NAT. However,<br>
> because your server is really on the Internet, then you might be <br>
> able to get RTP-over-TCP streaming to work, even though your client
<br>
> is not really on the Internet.</tt></font>
<br>
<br><font size=2><tt>Is the IP address the only problem with NAT? Couldn't
routers with correct port forwarding (on either end of the RTSP connection)
take care of this?</tt></font>
<br><font size=2><tt>Also, I notice a lot of posts about UDP transfer problems.
Is the primary reason that firewalls are often blocking UDP? RFC
2326 1.4 Claims that passing the Transport Initialization Information in
the RTSP messages allows routers to open the firewall as necessary. Do
any commercially available routers/firewalls actually allow this for RTP?
Based on posts so far, it sounds like if you have a firewall, you're
SOL without RTP-Over-TCP.</tt></font>
<br>
<br><font size=2><tt>RFC 2326, Section 1.4 Protocol Properties</tt></font>
<br><font size=2><tt>"</tt></font><font size=3><tt> Proxy and
firewall friendly:<br>
The protocol should be readily handled
by both application and<br>
transport-layer (SOCKS [14]) firewalls.
A firewall may need to<br>
understand the SETUP method to open
a "hole" for the UDP media<br>
stream."</tt></font>