[pptp-server] Bypassing the firewall

[Neale Banks]

On Sat, 18 Aug 2001, Stan A. Rogge wrote:

> Isn't the purpose of your company's firewall to prevent exactly what
> your trying to do?
> 
> If you are successful bringing up an external Network link into the
> middle of your company's internal network, isn't your company's
> Network Security compromised?

Indeed they would be.  The words "responsibility" and "liability" come to
mind here ;-)

> ----- Original Message ----- 
> From: "Sexy Boy" <Sexy-Boy at NetCourrier.Com>
> To: <pptp-server at lists.schulte.org>
> Sent: Saturday, August 18, 2001 4:38 PM
> Subject: [pptp-server] Bypassing the firewall
> 
> 
> > Hi,
> > 
> > I have a litlle (big for me :-) problem and if some can help me it would be
> > cool. So this is my problem :
> > 
> > At home, i configure a PPTP server on my linux box and it is working fine.
> > 
> > At my office, i would like to connect my NT 4.0 Workstation to my linux
> > server but the problem is the firewall which allows only connection to port
> > 21, 25, 80, 110, 443 but not 1723 ! (There is no way to change the firewall
> > setting because it's managed by an external company and i can't ask them to
> > change anything !)
[...]

Depending on just what you re trying to achieve, had you considered having
sshd listen on say port 443 on the Linux machine and using a Win32 SSH
client (e.g. TeraTerm+SSH, Putty)?  If that solves your problems it might
be both a whole lot simpler and open less opportunities for "other things"
to happen..

HTH,
Neale.

PS:
> > So what i'm trying to do is bypass the firewall with port redirection :

I don't think port redirection will help you with GRE.