[En-Nut-Discussion] Two Nut/OS boxes do not communicate with eachother

[Willem Myburgh]

Hi There

We have a private APN, which allocates fixed IP addresses to our mobile
units.

Regards
--Willem

On 12/13/06, Krzysztof Drewicz <hunter at mimuw.edu.pl> wrote:
>
> Willem Myburgh napisał(a):
> > The PC is also connected to the GPRS network.
> >
> >
> >> We use PPP. Each system connects to a GPRS network.
>
> With 95% of certain your GSM operator blocks direct p2p connections in
> GPRS/IP.
> First try to setup a serwer (anywhere in the internet) and use some
> simple tcp application. You could use some netcat/redir combinantion or
> write some app in perl.
> It will open a pair of sockets, read on one port and forward to the
> another socket if the second one is connected.
>
> In Poland most GSM providers count up to 2 Euro extra charge / month for
> one public IP on the GPRS, it's not firewalled by any means i.e. you are
> on your own and your ethernut box is connected to the Internet with
> public ip, you should consider this in your setup.
> Also, you could use some GSM based VPN, you will have your own virtual
> network like 10.11.12.32/29 (in most cases it is small) but it's
> firewalled from the Internet, you have access to the net, and p2p
> communication is not restricted, also in Poland it costs sth like
> 200-300 Euro / month for 10 sim cards.
>
>
> Best Regards.
>
>
>
>
>
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>



-- 
Willem Myburgh
South Africa
Mobile: +27834150416