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Changing DHCP IP Address

 
 
dpmjr
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      2nd Feb 2004
We are planning to change the IP adddress of our Network.
We have two domain controlers one running DHCP, DNS and
WINS. In addition I have an exchange 2000 server as a
memeber server. I have created a new scope in DHCP (not
active yet). I am wondering what to expect once I change
the IP address of my domain controllers then all my
memeber servers and finally activate the new scope and de-
activate the old one. I will be reducing the lease time
to a very short duration to ensure they all expire over
the weekend.

Thanks

Dante
 
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Rob Elder, MVP
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      3rd Feb 2004

"dpmjr" <(E-Mail Removed)> wrote in message
news:902301c3e9cc$7862d8d0$(E-Mail Removed)...
> We are planning to change the IP adddress of our Network.
> We have two domain controlers one running DHCP, DNS and
> WINS. In addition I have an exchange 2000 server as a
> memeber server. I have created a new scope in DHCP (not
> active yet). I am wondering what to expect once I change
> the IP address of my domain controllers then all my
> memeber servers and finally activate the new scope and de-
> activate the old one. I will be reducing the lease time
> to a very short duration to ensure they all expire over
> the weekend.
>
> Thanks
>
> Dante


It should be OK, but to be safe, I would bind the new IP address as a second
IP addresses on the NIC. Set the lease very short, then deactivate the
scope. When the IP addresses expire, they should pick one from the new
scope.


 
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Dante
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      3rd Feb 2004
How will my DNS server respond to a new IP address?


"Rob Elder, MVP" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
>
> "dpmjr" <(E-Mail Removed)> wrote in message
> news:902301c3e9cc$7862d8d0$(E-Mail Removed)...
> > We are planning to change the IP adddress of our Network.
> > We have two domain controlers one running DHCP, DNS and
> > WINS. In addition I have an exchange 2000 server as a
> > memeber server. I have created a new scope in DHCP (not
> > active yet). I am wondering what to expect once I change
> > the IP address of my domain controllers then all my
> > memeber servers and finally activate the new scope and de-
> > activate the old one. I will be reducing the lease time
> > to a very short duration to ensure they all expire over
> > the weekend.
> >
> > Thanks
> >
> > Dante

>
> It should be OK, but to be safe, I would bind the new IP address as a

second
> IP addresses on the NIC. Set the lease very short, then deactivate the
> scope. When the IP addresses expire, they should pick one from the new
> scope.
>
>



 
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Shane Brasher
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      4th Feb 2004
Hello All,

Assuming that this is a W2K AD domain, make sure your DC's and DNS servers
are registered correctly.

1.)At the prompt type ipconfig /flushdns and wait for the services to
flush.
2.)ipconfig /registerdns wait for the services to regiser.
3.)net stop netlogon
4.)net start netlogon

Wait 15 minutes for AD to replicate.

Run a netdiag on all DC's and DNS servers to make sure that there is no
problem.

Link to netdiag KB article.
321708 HOW TO: Use the Network Diagnostics Tool (Netdiag.exe) in Windows
2000
http://support.microsoft.com/?id=321708


Shane Brasher
MCSE (2003,2000,NT),MCSA, A+
Microsoft Platforms Support
Windows NT/2000 Networking





 
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Guest
Posts: n/a
 
      5th Feb 2004
thanks


>-----Original Message-----
>Hello All,
>
>Assuming that this is a W2K AD domain, make sure your

DC's and DNS servers
>are registered correctly.
>
> 1.)At the prompt type ipconfig /flushdns and wait

for the services to
>flush.
> 2.)ipconfig /registerdns wait for the services to

regiser.
> 3.)net stop netlogon
> 4.)net start netlogon
>
>Wait 15 minutes for AD to replicate.
>
>Run a netdiag on all DC's and DNS servers to make sure

that there is no
>problem.
>
>Link to netdiag KB article.
>321708 HOW TO: Use the Network Diagnostics Tool

(Netdiag.exe) in Windows
>2000
>http://support.microsoft.com/?id=321708
>
>
>Shane Brasher
>MCSE (2003,2000,NT),MCSA, A+
>Microsoft Platforms Support
>Windows NT/2000 Networking
>
>
>
>
>
>.
>

 
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