IP Addresses with Active Directory

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Guest

Hi.
I have win2k adv srv as DC.. with 100 pcs connected to it..
using 192.168.x.x series of IP's
i m facing trouble like.. i have formatted one pc on network. reinstalled
with win2k pro with sp4. giving same ip to pc wat previously it has.. now i m
getting msg - this ip is already used in domain please use another ip..

i have deleted pc name from the computers in AD.. and tried the same IP
again but getting same msg

how do i correct this ?

thanks
saifee
 
Saifee said:
Hi.
I have win2k adv srv as DC.. with 100 pcs connected to it..
using 192.168.x.x series of IP's
i m facing trouble like.. i have formatted one pc on network. reinstalled
with win2k pro with sp4. giving same ip to pc wat previously it has.. now i m
getting msg - this ip is already used in domain please use another ip..

i have deleted pc name from the computers in AD.. and tried the same IP
again but getting same msg

how do i correct this ?
Click to expand...

Are You using DHCP - if yes please check DHCP console on the server if
this address is not leased by other client machine
 
Hi..
No I dont have DHCP..


Tomasz Onyszko said:
Are You using DHCP - if yes please check DHCP console on the server if
this address is not leased by other client machine
Click to expand...
 
Hi.
I have win2k adv srv as DC.. with 100 pcs connected to it..
using 192.168.x.x series of IP's
i m facing trouble like.. i have formatted one pc on network.
reinstalled
with win2k pro with sp4. giving same ip to pc wat previously
it has.. now i m
getting msg - this ip is already used in domain please use
another ip..

i have deleted pc name from the computers in AD.. and tried
the same IP
again but getting same msg

how do i correct this ?

thanks
saife
Click to expand...

what is the EXACT message? An IP address has nothing to do with an
domain. Are you havinf problems with duplicate names or IPs?

Do you mean: a duplicate name exists on the network ?

ping by name
if already used use another name
if not... go into WINS and delete entry that belongs to the name you
want to use

ping by IP
if already used use another IP
 
HI Jorge

the exact msg is like : this ip address is already used in domain please use
another ip address..

while there is not repeatation of IP or duplicate name

let me brief the scenario again :

i have one pc say : abc with ip of 192.168.0.1 - OS: win2k pro sp4
due to some problem with PC it was need to format completely and reinstall
the OS,
after reinstallation of OS when i put the same ip (i.e. 192.168.0.1) i m
getting the above mentioned msg. i have deleted the computer object from AD
too.. but the msg was the same. than at finally i have used the different
fresh IP and machine was on domain without any trouble, and working fine as
expected.

so where i have to change to use the previous IP again in network

thank you
saifee
 
As Jorge mentioned, there is no connection to AD and the IP addresses. Active
Directory doesn't care one bit about your IP addresses and doesn't store that info.

The number one cause of duplicate IP messages is that there is another machine
on the network that has the IP address. If you used DHCP this would be far less
likely to happen. Since you don't, you can start with this. Take the machine
offline and from another, try to ping the address, does it respond? If so, track
it down. You will probably have to look at switch level MAC routing tables to
find it.

If it doesn't respond. Hook up your restaged machine to a hub with another
machine. Set the other machine up with a network sniffer. Start the sniffer,
start the machine getting the bad IP messages. Once it gets the message, look at
the network traffic frame by frame, something is telling the PC that it is
duplicating the address. Find out what it is.
 
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