RE: PPTP through the ISA server
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 27 Mar 2003 19:58:02 -0600
Hi Don,
When I have control over things (which is rare), I don't allow outbound
VPN connections from the private network. Why? Because that client
becomes a link between the remote network and my network. I have no
control over the security policy on the remote network, and I don't know
what this VPN client is transferring from their network to mine, and
what its transferring from my network to theirs. ISA Server doesn't not
examine communications going to a VPN link, so you have no idea what's
going on.
HTH,
Tom
Thomas W Shinder
www.isaserver.org/shinder
ISA Server and Beyond: http://tinyurl.com/1jq1
Configuring ISA Server: http://tinyurl.com/1llp
-----Original Message-----
From: Don McCall [mailto:DMcCall@xxxxxxxxxx]
Sent: Thursday, March 27, 2003 6:45 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] PPTP through the ISA server
http://www.ISAserver.org
Hi,
I have the ISA server set up to allow PPTP to the outside world. It
works well as I often connect to my home network using this. We use DHCP
here at work and we use the ISA to authenticate out going traffic. I
have inadvertanly discovered that I can VPN out on ANY computer that is
NOT a part of the Domain. While the security implications are relatively
small there is an issue with bandwidth being used. The ISA is the
default gateway. The connection does not show up on the ISA server I
cannot find an indication of the connection any where, but it is. Is
there a way of stopping this?? Am I missing something simple??
Thank you for any assistance or advice that you can give on this.
Regards
Don McCall
Systems Administrator
Baptist Community Services
Phone 02 9941 6049
Email dmccall@xxxxxxxxxx
Fax 02 9889 1520
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Baptist Community Services. 2
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