[isalist] Fwd: ISA Server 2006 VPN Question

  • From: "Jerry Young" <jerrygyoungii@xxxxxxxxx>
  • To: isalist@xxxxxxxxxxxxx, isapros@xxxxxxxxxxxxx
  • Date: Thu, 21 Aug 2008 13:26:24 -0400

All,

I'm not sure this got through the first time so I thought I'd send it again
and also submit to isapros.

---------- Forwarded message ----------
From: Jerry Young <jerrygyoungii@xxxxxxxxx>
Date: Aug 20, 2008 9:30 AM
Subject: ISA Server 2006 VPN Question
To: isalist@xxxxxxxxxxxxx


All,

I've set up a virtual environment on a workstation at my client's location
and installed an ISA Server 2006 instance in this virtual environment
(Hyper-V for those who are interested).

The basic topology of the environment looks like the following:

     Corporate Network (treating as ISA external)
                   |
              .---------.
              |  ISA  | --- Perimeter Network (treating as ISA perimeter)
              '---------"
                   |
     Internal Network (treating as ISA internal)
The Corporate Network is the corporate internal network; I'm simply using it
as the "Internet" in this case.

The setup is working fine and I can VPN into the ISA server from the
Corporate Network and access resources on the other two legs.  The "problem"
is that doing so locks me out of the Corporate Network and I can no longer
access those resources (Email, LCS, etc.) while connected.  I was wondering
if there were a way (aside from allowing traffic from VPN clients to pass
through the ISA server to the Corporate Network again) to be able to
maintain access to the Corporate Network resources.  My client uses an SSL
VPN Extender (Cisco) and that seems to work (access to local, home
networking resources remains intact even while connected to the Corporate
SSL VPN).

Thoughts?
-- 
Cordially yours,
Jerry G. Young II
Microsoft Certified Systems Engineer

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