[4822] in WWW Security List Archive
Fw: PPTP through a Firewall (like FWTK)?
daemon@ATHENA.MIT.EDU (Kelly E. Gibbs)
Fri Mar 14 21:09:02 1997
Reply-To: <kgibbs@best.com>
From: "Kelly E. Gibbs" <kgibbs@best.com>
To: <comalley@cybercom.net>, <firewalls@GreatCircle.COM>
Cc: <WWW-SECURITY@ns2.rutgers.edu>, <sneakers@CS.YALE.EDU>,
<ntsecurity@iss.net>
Date: Fri, 14 Mar 1997 10:12:55 -0800
Errors-To: owner-www-security@ns2.rutgers.edu
PPTP uses port 1723 and uses the GRE protocol (protocol # 47). Not all
firewalls support this. Cisco routers support #47 however I know
Livingston doesn't - although they may soon. Contact your firewall vendor
to see if this is available.
Thanks,
Kelly E. Gibbs
Realogic, Inc.
> I've recently been experimenting with providing remote access to our
> internal LAN via an NT RAS server running NT40 using PPTP. The RAS
server
> is currently behind our FWTK firewall
> (and, obviously, I'd prefer to keep it that way) - but I'm having trouble
> figuring out which ports I
> need to pass-thru from the firewall to the RAS server. Anyone have any
> experience with this
> and PPTP in general?
> Christopher O'Malley
> System Manager
> I-Kinetics, Inc.
>
> ----------
>
