RE: PPTP Question
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Tue, 9 Dec 2003 17:22:27 -0600
Hi Bill,
I set this up for someone just a few days ago. You just need to forward
TCP ports 47 and 1723 to the ISA firewall's external interface. Yes, I
know its IP protocol 47, but the Linksys interface doesn't realize that
:-)
HTH,
Tom
-----Original Message-----
From: William Holmes [mailto:wtholmes@xxxxxxxxxxxxxx]
Sent: Tuesday, December 09, 2003 8:22 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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