Solved

Unable to register DNS when the systems are directly connected to the internet if ISA 2004 client is installed

Posted on 2008-10-07
5
212 Views
Last Modified: 2012-05-05
Setup: Windows Domain
Server: 2003 RC2 Std (With AD, DNS, ISA 2004)
Clients: Win XP (desktop and Laptop)
Internal IP range: 10.82.4.x

Internet: Leased line, connected directly to Win Server on 2nd NIC., Shared thru ISA Server 2004 with FWC installed on all clients except a few laptops. Those few laptops have the gateway as this server.
Those laptops with the FWC installed, when taken outside office premises and connected onto a different ISP for internet, gets connected, but the DNS still points to the office Win server (private IP). Hence, the IPs do not get resolved and cannot browse except if you know the IP addresses. The laptops ping to all public IP. There is no change even when the FWC is uninstalled. The ipconfig/all shows the public DNS servers of the dialup connection but the nslookup points to the office DNS (10.82.4.4). Corruption is ruled out as all the laptops with FWC are in the same situation.
Those laptops where the FWC was never installed, work fine on the above scenario.
0
Comment
Question by:Bigflicks
  • 2
5 Comments
 
LVL 16

Expert Comment

by:robrandon
ID: 22668378
Is the TCP/IP Properties of the network connection setup to Obtain DNS server addresses automatically?  This is the setting beneath the Obtain IP addresses automatically.  It is possible to get a DHCP IP Address, but not the DHCP DNS servers that way.
0
 

Author Comment

by:Bigflicks
ID: 22685419
Yes the setup is as u said
0
 
LVL 16

Accepted Solution

by:
robrandon earned 500 total points
ID: 22730337
Have you looked through this MS article at all?  It explains the correct way to setup the autodetect settings for ISA 2004 and the FWC.

http://technet.microsoft.com/en-us/library/cc713344.aspx

0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

If you have a multi-homed DNS setup in windows, you can have issues with connectivity to the server that hosts the DNS services (or even member servers of your domain if this same DNS server is a DC). This is because windows registers all of its IPs…
I will assume you are running a non-server version of some sort of Windows throughout this article. There are many flavors of Windows since Windows Server 2000 - 2008, XP Home & Pro, Vista Home & Pro, and Windows 7 Starter, Home, Pro, Ultimate, etc.…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question