DNS resolving to wrong IP address

[furtech]

Hello,

My DNS server, which is a W2K server, seems to be resolving the wrong IP address for client computers (running WinXP) within our network. But it works fine for Internet usage. We are also running a DHCP server off the same machine.

The network seems to work fine, except for when I try and VNC into machines. I'll enter in a computer name such as CompA, and I'll end up looking at CompB. So I try a ping test to CompA and I get ping results for CompB.

Thanks

 

[dearingkr]

Make sure your DNS server is configured to allow dynamic updates.

Open DNS
Expand server_name | Forward Lookup Zones
Right-click the zone | Properties
General tab
Select 'Secure only'

Hope this helps.

MCSE CCNA CCDA

 

[furtech]

Thanks for the advice, but already been set to 'Secure Only'.


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Matthew Collins

http://www.furtech.net

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[ricpinto]

Check hosts file.

 

[GrimDeath]

May want to check your DHCP lease time. Too short a lease could cause frequent IP changes (under say a day). Dynamic DNS might be taking a while to catch up.

 

[furtech]

I did have the lease time set to 5 hours, but since last Thursday I changed it to 3 days. The problem seemed to go away at first, but it's now come back again.

---------------------------------------
Matthew Collins

http://www.furtech.net

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[Code666]

it may have something to do with numerous A records in the DNS database. do you have scavenging enabled and if so what are the values?

 

[GlenJohnson]

Did you try and flush your dns and try again? Just a thought.

Glen A. Johnson
If you're from Northern Illinois/Southern Wisconsin feel free to join the Tek-Tips in Chicago, Illinois Forum.

TTinChicago
Johnson Computers

 

[Shekinah]

Just a note in case this is a step that was missed. An earlier post recommended you enable dynamic updates in DNS. This must ALSO be enabled in DHCP so it can accept updates. Go to your DNS snap in and right click the scope, go to properties. On the DNS tab you can enable the updates.

Hope it helps

 

[Shekinah]

Sorry,

Go to the DHCP snap in - rt click - go to properties - the dns tab - check the box to "automatically update DCHP client information in DNS" and any othe options you want.