Great Circle Associates Firewalls
(February 1998)
 

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Subject: RE: Protocol 47
From: James Strompolis <jimst @ enteract . com>
Organization: Aleph Consultants, Inc.
Date: Fri, 27 Feb 1998 15:54:36 -0600
To: "'Frank Santiago'" <santia_f @ INS . COM>, "'Firewalls'" <firewalls @ GreatCircle . COM>
Reply-to: "jimst @ enteract . com" <jimst @ enteract . com>

And PPTP uses GRE which is protocol 47.  

- James Strompolis
  Aleph Consultants, Inc.
  jimst @
 enteract .
 com

On Thursday, February 26, 1998 11:37 PM, Frank Santiago [SMTP:santia_f @
 INS .
 COM] wrote:
> Adam,
> 
> PPTP uses TCP port 1723.
> 
> At 05:07 PM 2/25/98 -0600, Adam Fenn wrote:
> >I am messing around with PPTP on an NT RAS server.  I thought I would
> >try to proxy PPTP through my bastion host.  I pulled out a sniffer to
> >figure out what TCP or UDP ports PPTP used.. Turns out PPTP is a
> >transport layer protocol of it's own, protocol 47.  Like TCP is 6 and
> >UDP is 17.   Anyone know how I might proxy protocol 47?  I am running a
> >little Linux i386 machine, with a variety of free proxy applications.
> >
> >Thanks!
> >Adam
> >
> >


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