[isalist] Wierd ISA 2004 SP2 / VPN Problem

  • From: "Paul Crisp" <PCrisp@xxxxxxxxxxxxxxxxx>
  • To: <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 25 Oct 2006 09:02:03 +0100

OK,

If any of you have previously seen I asked about documentation for a new
server, well I just imported the configuration from the old ISA box and
created an entirely new ISA2004 SP2 box with a different name and all is
working fine apart from a very weird problem.

I have a number of VPN users and for the most VPN works correctly and
all is as it used to be apart from one of them. When the guy connects to
the ISA box he connects without a problem although everyone on the
internal side of ISA lose connectivity, you cannot ping the ISA's
internal network card. When the VPN client disconnects, everything comes
back to normal????

Configuration is as follows:

ISA 2004 SP2 SE
2 network cards - 1x External, 1x Internal
Fixed IP addresses for internal & external
DNS setup on internal network card (pointing to internal DNS server)
WINS setup on internal network card (pointing to internal WINS server)
Firewall rule for VPN clients to have all outbound protocols go to
internal network
RRAS setup to pull DHCP range from internal network card

Any more info needed just let me know

Paul Crisp
Snr Network Support Analyst

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  • » [isalist] Wierd ISA 2004 SP2 / VPN Problem