RE: PPTP Question
- From: "DJG" <intellihome@xxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Tue, 9 Dec 2003 16:47:00 -0800
There is a very good chance as most that I have set up happen to use DSL. I
have a buddy that has cable and he might be using a Linksys (or some other
inexpensive router) so I will try and experiment with it in the next few
days. How does DSL differ from cable/t1 that it would cause this?
Dan
-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx]
Sent: Tuesday, December 09, 2003 3:44 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: PPTP Question
http://www.ISAserver.org
Hi DJG,
I'm sure there is an explanation for this. Any chance that you see this
only with DSL connection?
Thanks!
Tom
-----Original Message-----
From: DJG [mailto:intellihome@xxxxxxxxxxx]
Sent: Tuesday, December 09, 2003 10:53 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: PPTP Question
http://www.ISAserver.org
This may or may not help but here goes. The problem I've had with vpn's
and these inexpensive routers it that when you map a port (1723)
through, the vpn acts differently than it does when you connect to ISA.
If a vpn connection is made to ISA (or W2k for that matter) you can then
use RDP (for
instance) within the tunnel. IOW, no additional ports need to be
configured as RDP runs inside the tunnel. If the connection is made via
the inexpensive router then forwarded to the RRAS machine you can no
longer run RDP inside the tunnel. You can access shares via unc. In the
case when I need to use RDP I have to map 3389 and skip using the vpn. I
don't have any idea why this is.
Dan
-----Original Message-----
From: William Holmes [mailto:wtholmes@xxxxxxxxxxxxxx]
Sent: Tuesday, December 09, 2003 6:22 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] PPTP Question
http://www.ISAserver.org
Hello,
In order to use publishing it is necessary for the external IP address
of the ISA server to stay at a fixed IP. Unfortunately I have a DHCP
assigned address on my Cable Modem. My solution has been to install a
Linksys BEFSX41 router. This router has a DMZ port. I have my ISA server
configured as the DMZ host. In this way the ISA server always sees a
fixed IP address despite what the external address is. In addition this
router supports dynamic DNS updates so whenever the router's IP address
changes it updates my Dynamic DNS service. All of my published services
work find except PPTP. And this has only stopped working since updating
to the latest Firmware v1.45.3. Outbound PPTP works fine but inbound
PPTP to the ISA server does not.
Does anyone have any experience with this or suggestions about how allow
inbound PPTP to work. It was working fine in the v1.43.3 firmware but
that firmware has issues with working with DDNS.
Thanks
Bill
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