RE: DNS and Slow access Issues with Secure NAT clients

  • From: "Thomas W. Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 14 Mar 2002 20:21:42 -0600

Hi Karl,
 
I've noticed the same thing quite a bit recently. I haven't nailed down
the cause yet, but you describe the exact situation I've had relatively
frequently the last few days. Restarting the firewall service always
fixes it, but it often resolves itself.
 
HTH,
Tom
 
-----Original Message-----
From: Karl Schneider [mailto:kschneider@xxxxxxxxxxxxxx] 
Sent: Thursday, March 14, 2002 5:46 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] DNS and Slow access Issues with Secure NAT clients
 
http://www.ISAserver.org
All of my clients are set up as SecureNAT clients.  Their default
gateway points to the firewall.  Every once in a while, I can no longer
do nslookup's to my ISP's DNS servers from my internal DNS server.  The
client web access speed goes way down and pages start timing out.  I am
able to do nslookup's from the firewall and am able to reach the
internet through the firewall.  I also can plug in the firewall address
as the proxy server and internet access is a lot faster.
 
Has anyone else come accross this?
 
Karl
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