That's a simple/client server communication ...<div>You will just have to open a port on the server side nat to route it to your server ( even if you use openvpn, ssh, ... you'll have to do it ) </div><div>A second solution, if you can't translate a port in the nat is using a third computer reachable from anywhere wich "organise" the transfer, both freerunner connect at this third machine as client and the machine make the transmition.</div>
<div>Protocol is at you convenience, making a client/server in Qt4 isn't difficult and is well documented ( if you need help, you can contact me ) <br><br><div class="gmail_quote">2009/9/2 Matthias Huber <span dir="ltr"><<a href="mailto:matthias.huber@wollishausen.de">matthias.huber@wollishausen.de</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Michael Tansella schrieb:<br>
<div class="im">> Hi,<br>
><br>
> How can I establish a communication connection (I want to transfer Text) from<br>
><br>
> A:<br>
> Freerunner<br>
> GPRS Vodafone Germany Connection (IP behind NAT)<br>
> Qt program that sends for example coordinates<br>
><br>
> to<br>
><br>
> B:<br>
> Linux Notebook<br>
> GPRS Vodafone Germany Connection (IP behind NAT)<br>
> Qt program that processes the received Data immediately<br>
><br>
> I want to implement this in a QT4 program and thought about TCP<br>
> but how can I get a "global" accessable IP address.<br>
> Does there already exist any tool that can do this?<br>
> Do I have to use SSH, VPN, HTTP, FTP, ...? Unfortunately I don't know much<br>
> about networking stuff such as NAT etc. , can you just give me a hint, how to<br>
><br>
<br>
</div>i recommend you to use openvpn. i am doing this on my fr with no<br>
problems at all.<br>
<font color="#888888"><br>
<br>
--<br>
Matzehuber<br>
</font><div><div></div><div class="h5"><br>
<br>
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