Duplicate IP/Name Resolution Issue

[Akayla]

Below should explain my problem:

As an example, I have two machines w0100150 and L0100197

Ping w0100150 - shows reply from machine and shows IP - 192.168.100.108
Ping -a 192.168.100.108 shows machine name 10100197

Ping L0100197 - shows reply from and IP - 192.168.100.108
Ping -a 192.168.100.108 shows machine name 10100197

The DNS Entry for both machines show IP data as 192.168.100.108

How come two machines have same IP address and no one is complaining?? I can see L0100197 in Network Neighbourhood but not w0100150.

We have a AD Domain on a Windows 2000 Server. We still use Wins as we have lots of NT Workstations.

Another Example.
My SMS Server shows one machine's(wo100272) IP address as 192.168.100.122
But, on pinging that machine I get the IP address 192.168.100.114
On doing a ping-a to 192.168.100.114, I get name of another machine w0100268.
If I ping w0100268, I get 192.168.100.114

IN DNS both machines have same IP data: 192.168.100.114
I can see both these machines in Network Neighbourhood.

Any thoughts on how to resolve the issue?

 

[sleipnir214]

I doubt that both machines have the same IP address. It's just that DNS or WINS is reporting the same address for two different machine names.

And ping doesn't care about machine names, only IP addresses. So when you give it a machine name, the first thing it does is translate that to an IP address. If your DNS or WINS is reporting the same IP address for both machine names, when you ping by both names, you really only pinging the one machine.


Want the best answers? Ask the best questions!

TANSTAAFL!!

 

[Akayla]

Thanks for your reply.

So now should I just blow out my Wins Database ?? Will it get repopulated automatically? Will any of the clients have any issue logging on to any network connections?

I guess my concern is how to resolve the issue.

 

[sleipnir214]

I would first find the two machines and examine their respective IP settings.


Want the best answers? Ask the best questions!

TANSTAAFL!!

 

[Akayla]

I guess that would be the first step in troubleshooting the issue.

Thanks.

 

[bfralia]

You can go into your WINS manager and delete just the mapping for the IP address in question. It should pick up the correctly in a short while.