Shorewall users - Aug 2008 - Problem with cellular connection and NAT

Hi, here's my problem :

I'm having a machine that connect to our server on a DNATed machine  
(behind our
firewall). We are able to establish a first connection (eg. using telnet).

If I remove the power of the cellular modem and try again to connect  
to the same ip/port,
i'm not able to connect. I know that the modem still get the same IP  
when I reconnect to
the towers.

I am able to establish a connection again if I drop the still  
established connection on
the server side.

I monitored the firewall on the designated port to see what's going on  
and I see that the
connection packet reach the firewall but it doesn't get transfered on  
the server (using
DNAT).

I use iptable 1.4.0, shorewall 3.4.8 and kernel vanilla 2.6.25.14

Thank's

-- 
Pascal Poudrier, CISSP
----------------------------------------------------------------
Messages de confidentialité

Ce courriel (de même que les fichiers joints) est strictement réservé à
l'usage de la personne ou de l'entité à qui il est adressé et peut
contenir
de l'information privilégiée et confidentielle. Toute divulgation,
distribution ou copie de ce courriel est strictement prohibée. Si vous avez
reçu ce courriel par erreur, veuillez nous en aviser sur-le-champ, détruire
toutes les copies et le supprimer de votre système informatique.

Merci.

Confidentiality Notice

This communication (including any files transmitted with it) is intended
solely for the person or entity to whom it is addressed, and may contain
confidential or privileged information. The disclosure, distribution or
copying of this message is strictly forbidden. Should you have received this
communication in error, kindly contact the sender promptly, destroy any
copies and delete this message from your computer system.

Thank you..


-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great
prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Shorewall-users mailing list
Shorewall-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/shorewall-users

Pascal Poudrier wrote:
> Hi, here''s my problem :
> 
Please see http://www.shorewall.net/support.htm#Guidelines for a 
description of the information that we need to solve connection problems.

-Tom
-- 
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ teastep@shorewall.net
PGP Public Key   \ https://lists.shorewall.net/teastep.pgp.key



-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer''s
challenge
Build the coolest Linux based applications with Moblin SDK & win great
prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/