>
Olaf,
>
> we have successfully tested LINUX kernel 2.2.x for using it in sattelite
> enviroment. We have build up a squid proxy array and have used ipchains as
> tranparent proxy with port mapping.
>
I would be interested in knowing more about your setup, because I cannot
follow what you are doing and would like to compare what Klaus and I are
doing in Kalimantan (yes, of all places, Kalimantan, Indonesia).
Here is what we got working:
|
|
Linux PC --- NT LAN
|
|
/
/
Linux PC <---->VSAT II modem by NSI <---> carrierer /
\
\
\
Router ISP Wasantara
INTERNET
The idea is not to use a single channel per carrier (SCPC), nor a hub
(star system). Money is a primaray issue here in Indonesia and consequently,
we have set up a mesh DAMA and therefore an number of VSAT sharing
transponder space on mabuhay (philippino) satellite. We are still
at the testing state, but so far so good, except
we do'nt get a better transfer rate than 4 K/sec.
Any idea what to expect?
> Right know we think about using a LINUX PC as a VSAT station. Therefore we use
I suppose this "replaces" of an external modem , using somesort of
internel QPSK card? What brand, what software?
> a DVB card for receiving the big forward channel. For the back channel we want
> to use a QPSK modulator card. Probably we have to implement a LINUX kernel
> driver and a API. Maybe there is already a PC QPSK modulator card with LINUX
> driver avaiable ? As I have looked to the Internet I could not find any
> avaiable QPSK card for PC. Does anybody of you have any information ??
>
>
as to lett: I taught the first C seminars at your institute some 14 years
ago and presently compterize with Klaus Lichtenwalder palm oil and
rubber estates in Indonesia, using Inter- and Intranet techniques. Terrestial
we are up and running 95%+ for a year terrestially (in Indonesia!!!)
and now going satellite. All with Linux
want see what our place looks like? www.ptpn13.com
>
Dieter
>
> Olaf Menzel
>
> ---
> Dipl. Ing. Olaf Menzel - System Engineer
> GMD - German National Research Center of Information Technology
> dept. SatNET
> Schloss Birlinghoven, 53754 Sankt Augustin, Germany
> Phone: +49-2241-14-2252 Mobile: +49-171-9148395 Fax: +49-2241-14-1050
> email: [email protected] Internet: http://sat.gmd.de
>
This archive was generated by hypermail 2b29 : Mon Feb 14 2000 - 16:14:59 EST