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How to force client to request new IP from DHCP?

 
 
Joe Befumo
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      01-19-2007, 01:23 PM
I'm (still) helping a local radio station migrate from a peer-peer
conglomeration of Win 98, Win 2000, and XP peer-peer situation into Windows
2003 domain with 2 servers and all XP (Professional) clients. With the help
of folks from this newsgroup, we've been planning this for several months,
and feel pretty comfortable with where's we're going, but have it a few
minor glitches as we prepare to deploy.



One server will also function to capture audio for archiving, via FTP to
their website. I've got the first server built and configured as an Active
Directory domain server, dns is set up, etc & everything seems to work fine,
except, that it can't reach the internet when I have TCP/IP set up with a
fixed address. Right now they're running DHCP on a Linksys router, on which
I have exempted the two fixed addresses I'd set aside for the two servers.
The plan is to switch over to letting the Windows 2003 Servers handle DHCP,
but for now, we're still on the Linksys. When I tell the running server to
obtain an IP address automatically from DHCP, it accesses the internet fine,
so that's how it's running right now. My initial suspicion is that DNS isn't
configured properly, but I can't see anything wrong:

In the DNS setup I have the forwarding IPs set to the external DNS servers
of the station's internet provider

In TCP/IP setup I have entered the fixed IP address of the server itself. (I
'll add a pointer to the second server as soon as I get it on line.



I'm trying to handle the switchover with the least interruption to the
running business, so the next step is to upgrade all of the clients to XP
Professional.



Then I'll configure the second server as a backup domain controller on the
existing Active Directory forest (correct?). I will set up the DNS the same
way as the other machine, with the preferred DNS pointing to my two internal
servers, and forwarding in the DNS setup to the external DNS servers.



Once I get ready to turn off DHCP on the Linksys, how do I force the
workstations to request a new IP, so they're getting it from our servers?
During our initial experiments, we wound up with IP conflicts, so I
temporarily removed DHCP from the running server.



My immediate problem, however, is getting that first server back to a fixed
IP address, while maintaining internet connectivity, since, once again, it
has to be able to FTP archived audio to the station's web site. Any ideas?



Thanks,



Joe



 
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Bill Grant
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Posts: n/a

 
      01-20-2007, 12:17 AM
If you are running a machine as a DC in Active Directory you need to have
is set to use a static IP. To access the Internet it should have its default
gateway set to the IP address of the gateway router (ie the private IP of
the Linksys). DNS should be set to the local IP address of the DC. If this
DNS is set to forward to a public DNS, this should resolve foreign URLs as
well as local names.

"Joe Befumo" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I'm (still) helping a local radio station migrate from a peer-peer
> conglomeration of Win 98, Win 2000, and XP peer-peer situation into
> Windows
> 2003 domain with 2 servers and all XP (Professional) clients. With the
> help
> of folks from this newsgroup, we've been planning this for several months,
> and feel pretty comfortable with where's we're going, but have it a few
> minor glitches as we prepare to deploy.
>
>
>
> One server will also function to capture audio for archiving, via FTP to
> their website. I've got the first server built and configured as an Active
> Directory domain server, dns is set up, etc & everything seems to work
> fine,
> except, that it can't reach the internet when I have TCP/IP set up with a
> fixed address. Right now they're running DHCP on a Linksys router, on
> which
> I have exempted the two fixed addresses I'd set aside for the two servers.
> The plan is to switch over to letting the Windows 2003 Servers handle
> DHCP,
> but for now, we're still on the Linksys. When I tell the running server to
> obtain an IP address automatically from DHCP, it accesses the internet
> fine,
> so that's how it's running right now. My initial suspicion is that DNS
> isn't
> configured properly, but I can't see anything wrong:
>
> In the DNS setup I have the forwarding IPs set to the external DNS servers
> of the station's internet provider
>
> In TCP/IP setup I have entered the fixed IP address of the server itself.
> (I
> 'll add a pointer to the second server as soon as I get it on line.
>
>
>
> I'm trying to handle the switchover with the least interruption to the
> running business, so the next step is to upgrade all of the clients to XP
> Professional.
>
>
>
> Then I'll configure the second server as a backup domain controller on the
> existing Active Directory forest (correct?). I will set up the DNS the
> same
> way as the other machine, with the preferred DNS pointing to my two
> internal
> servers, and forwarding in the DNS setup to the external DNS servers.
>
>
>
> Once I get ready to turn off DHCP on the Linksys, how do I force the
> workstations to request a new IP, so they're getting it from our servers?
> During our initial experiments, we wound up with IP conflicts, so I
> temporarily removed DHCP from the running server.
>
>
>
> My immediate problem, however, is getting that first server back to a
> fixed
> IP address, while maintaining internet connectivity, since, once again, it
> has to be able to FTP archived audio to the station's web site. Any ideas?
>
>
>
> Thanks,
>
>
>
> Joe
>
>
>



 
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Joe Befumo
Guest
Posts: n/a

 
      01-22-2007, 02:05 PM
Thanks Bill,

Pretty much what I figured -- I'll go back over it and see if I can find
where I screwed up.

Joe


"Bill Grant" <not.available@online> wrote in message
news:(E-Mail Removed)...
> If you are running a machine as a DC in Active Directory you need to

have
> is set to use a static IP. To access the Internet it should have its

default
> gateway set to the IP address of the gateway router (ie the private IP of
> the Linksys). DNS should be set to the local IP address of the DC. If this
> DNS is set to forward to a public DNS, this should resolve foreign URLs as
> well as local names.
>
> "Joe Befumo" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> > I'm (still) helping a local radio station migrate from a peer-peer
> > conglomeration of Win 98, Win 2000, and XP peer-peer situation into
> > Windows
> > 2003 domain with 2 servers and all XP (Professional) clients. With the
> > help
> > of folks from this newsgroup, we've been planning this for several

months,
> > and feel pretty comfortable with where's we're going, but have it a few
> > minor glitches as we prepare to deploy.
> >
> >
> >
> > One server will also function to capture audio for archiving, via FTP to
> > their website. I've got the first server built and configured as an

Active
> > Directory domain server, dns is set up, etc & everything seems to work
> > fine,
> > except, that it can't reach the internet when I have TCP/IP set up with

a
> > fixed address. Right now they're running DHCP on a Linksys router, on
> > which
> > I have exempted the two fixed addresses I'd set aside for the two

servers.
> > The plan is to switch over to letting the Windows 2003 Servers handle
> > DHCP,
> > but for now, we're still on the Linksys. When I tell the running server

to
> > obtain an IP address automatically from DHCP, it accesses the internet
> > fine,
> > so that's how it's running right now. My initial suspicion is that DNS
> > isn't
> > configured properly, but I can't see anything wrong:
> >
> > In the DNS setup I have the forwarding IPs set to the external DNS

servers
> > of the station's internet provider
> >
> > In TCP/IP setup I have entered the fixed IP address of the server

itself.
> > (I
> > 'll add a pointer to the second server as soon as I get it on line.
> >
> >
> >
> > I'm trying to handle the switchover with the least interruption to the
> > running business, so the next step is to upgrade all of the clients to

XP
> > Professional.
> >
> >
> >
> > Then I'll configure the second server as a backup domain controller on

the
> > existing Active Directory forest (correct?). I will set up the DNS the
> > same
> > way as the other machine, with the preferred DNS pointing to my two
> > internal
> > servers, and forwarding in the DNS setup to the external DNS servers.
> >
> >
> >
> > Once I get ready to turn off DHCP on the Linksys, how do I force the
> > workstations to request a new IP, so they're getting it from our

servers?
> > During our initial experiments, we wound up with IP conflicts, so I
> > temporarily removed DHCP from the running server.
> >
> >
> >
> > My immediate problem, however, is getting that first server back to a
> > fixed
> > IP address, while maintaining internet connectivity, since, once again,

it
> > has to be able to FTP archived audio to the station's web site. Any

ideas?
> >
> >
> >
> > Thanks,
> >
> >
> >
> > Joe
> >
> >
> >

>
>



 
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