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Networking with MicroSoft Win 2000

Posted on 2003-10-27
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Last Modified: 2010-03-18
I have a LAN with private IPs, with a W2K server, 10 users on the LAN, everyone can get to the WWW.

We are connected via a Cisco router (own by the ISP) and they provide DNS, DHCP and NAT services.

As an administrator I can see the web site, I can ping it, the NSLOOKUP works right. But.....

Here is the big question.

I can see the web site, another person on the LAN see it, but noone else can see it, nor ping it. The same is true for outsiders, i.e., people off the LAN. All the workstations are configured the same, with private IPs. Some users are cannot get to all WWW sites. We are "losing our left over hair" and have reached a wall. Can anyone help???? Please!


aarmoni

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Question by:aarmoni
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vtobusman earned 500 total points
ID: 9630359
You first said every one can get to the www then later said some users cannot get to the www...
  First i would check to make sure the users that are having issues are infact getting an ip address from the DHCP server setup by you ISP....
  If not call the isp and let them know our problem and that you need it fixed...
next ou said that you have a website that no one can get to from the outside of your network and only a few people from the inside of you network can get to it...
   The web site where is it located ?? in your net work or on the internet ?
if its on your network and you are using NAT did you have your ISP setup static maps for in private Address ? if not ou will need to have this done as well...
    More info on how exactly you are setup will help me give a better answer...
please post back..
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by:timnorvel
ID: 9630739
Can you ping the workstations that can't ping the web server?  If not, are your machines connected to a switch or a hub?  If it is a switch, try plugging one of the machines that can't ping the web server into the same port that you are plugged into (unplug yours first, of course) and see if they can now ping the webserver.   My thought is maybe you have VLANs configured on your switch that is not allowing traffic between some of the local machines.  Anyway, it would be a good test to see if your workstation can communicate with the problem machines.
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by:aarmoni
ID: 9671451

The answer was a good thinking trigger that assited in finding some of the problems.

Thanks
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