Static IP address but dynamic DNS settings

Is it possible (via regedits or any other means) to
assign a static IP address to a machine, but still allow
it to pull it's DNS and WINS (for now) servers via DHCP?

Why not just use a DHCP reservation for its MAC address, so the rest of the
info is assigned & can be easily changed?

M. Darrow wrote:
> Is it possible (via regedits or any other means) to
> assign a static IP address to a machine, but still allow
> it to pull it's DNS and WINS (for now) servers via DHCP?

Because it's for servers and we prefer to have static
addressing of servers.

Also, our servers have their NICs teamed, and there is a
posibility that if one NIC goes bad and the server
reboots before we get a chance to fix it, when it comes
back up it will use the MAC address of the second NIC,
which means the reservation is useless.

>-----Original Message-----
>Why not just use a DHCP reservation for its MAC address,
so the rest of the
>info is assigned & can be easily changed?
>
>M. Darrow wrote:
>> Is it possible (via regedits or any other means) to
>> assign a static IP address to a machine, but still
allow
>> it to pull it's DNS and WINS (for now) servers via
DHCP?
>
>
>.
>

Double-post, forgot to add my name to the first reply.

Because it's for servers and we prefer to have static
addressing of servers.

Also, our servers have their NICs teamed, and there is a
posibility that if one NIC goes bad and the server
reboots before we get a chance to fix it, when it comes
back up it will use the MAC address of the second NIC,
which means the reservation is useless.

Thanks,
M. Darrow

>-----Original Message-----
>Why not just use a DHCP reservation for its MAC address,
so the rest of the
>info is assigned & can be easily changed?
>
>M. Darrow wrote:
>> Is it possible (via regedits or any other means) to
>> assign a static IP address to a machine, but still
allow
>> it to pull it's DNS and WINS (for now) servers via
DHCP?
>
>
>.
>

On Tue, 17 Aug 2004 20:13:21 -0700,
<(E-Mail Removed)> wrote:

>Because it's for servers and we prefer to have static
>addressing of servers.

Using the MAC address reservationb is effectively the same thing, but
if you must have static IP's then you have to enter the DNS settings
too. Best you could do is script the DNS settings so you can change
the script to update servers.

Jeff

>Also, our servers have their NICs teamed, and there is a
>posibility that if one NIC goes bad and the server
>reboots before we get a chance to fix it, when it comes
>back up it will use the MAC address of the second NIC,
>which means the reservation is useless.
>
>>-----Original Message-----
>>Why not just use a DHCP reservation for its MAC address,
>so the rest of the
>>info is assigned & can be easily changed?
>>
>>M. Darrow wrote:
>>> Is it possible (via regedits or any other means) to
>>> assign a static IP address to a machine, but still
>allow
>>> it to pull it's DNS and WINS (for now) servers via
>DHCP?
>>
>>
>>.
>>

I don't follow how a MAC address reservation is the same
thing as a static entry, given the following:

If a server goes down, and the DHCP server happens to be
unavailable, and the lease on the IP address has expired,
you're in trouble.

Also, as I stated, there is a high probability that once
the server is rebooted the virtual interface will use the
MAC address of the second NIC, where as when the server
was stood-up it was using the MAC address of the first
NIC. In that circumstance a MAC address reservation is
useless, because then the IP address cannot be obtained
via DHCP if the virtual interface ever uses the second
NIC.

I think one of the ideas we came up with was a script, or
even better a GPO, because with a GPO we wouldn't have to
physically touch the box, where as if the DNS settings
were pulled dynamically, or if we used a script, we would
have to touch the box.

>-----Original Message-----
>On Tue, 17 Aug 2004 20:13:21 -0700,
><(E-Mail Removed)> wrote:
>
>>Because it's for servers and we prefer to have static
>>addressing of servers.
>
>Using the MAC address reservationb is effectively the
same thing, but
>if you must have static IP's then you have to enter the
DNS settings
>too. Best you could do is script the DNS settings so
you can change
>the script to update servers.
>
>Jeff
>
>>Also, our servers have their NICs teamed, and there is
a
>>posibility that if one NIC goes bad and the server
>>reboots before we get a chance to fix it, when it comes
>>back up it will use the MAC address of the second NIC,
>>which means the reservation is useless.
>>
>>>-----Original Message-----
>>>Why not just use a DHCP reservation for its MAC
address,
>>so the rest of the
>>>info is assigned & can be easily changed?
>>>
>>>M. Darrow wrote:
>>>> Is it possible (via regedits or any other means) to
>>>> assign a static IP address to a machine, but still
>>allow
>>>> it to pull it's DNS and WINS (for now) servers via
>>DHCP?
>>>
>>>
>>>.
>>>
>
>.
>

FWIW, you can also assign a "static" MAC address.


"M. Darrow" <(E-Mail Removed)> wrote in message
news:811301c484d3$7200d6c0$(E-Mail Removed)...
> Double-post, forgot to add my name to the first reply.
>
> Because it's for servers and we prefer to have static
> addressing of servers.
>
> Also, our servers have their NICs teamed, and there is a
> posibility that if one NIC goes bad and the server
> reboots before we get a chance to fix it, when it comes
> back up it will use the MAC address of the second NIC,
> which means the reservation is useless.
>
> Thanks,
> M. Darrow
>
> >-----Original Message-----
> >Why not just use a DHCP reservation for its MAC address,
> so the rest of the
> >info is assigned & can be easily changed?
> >
> >M. Darrow wrote:
> >> Is it possible (via regedits or any other means) to
> >> assign a static IP address to a machine, but still
> allow
> >> it to pull it's DNS and WINS (for now) servers via
> DHCP?
> >
> >
> >.
> >

(E-Mail Removed) wrote:
> Because it's for servers and we prefer to have static
> addressing of servers.

Ah, you didn't say that. I agree, all servers should have statics. You'll
need to enter everything in manually - you can't have a static IP and a
dynamically assigned DNS server, etc.
>
> Also, our servers have their NICs teamed, and there is a
> posibility that if one NIC goes bad and the server
> reboots before we get a chance to fix it, when it comes
> back up it will use the MAC address of the second NIC,
> which means the reservation is useless.
>
>> -----Original Message-----
>> Why not just use a DHCP reservation for its MAC address, so the rest
>> of the info is assigned & can be easily changed?
>>
>> M. Darrow wrote:
>>> Is it possible (via regedits or any other means) to
>>> assign a static IP address to a machine, but still allow
>>> it to pull it's DNS and WINS (for now) servers via DHCP?
>>
>>
>> .

"M. Darrow" <(E-Mail Removed)> wrote in message
news:130a01c48534$f6c95600$(E-Mail Removed)...
> I don't follow how a MAC address reservation is the same
> thing as a static entry, given the following:

.....because it causes the DHCP to *always* give it the same IP#, just as if
it was static. I'm afraid you can't have your cake and eat it too,...your
will either have to run in with DHCP Reservations, or you will have to make
it *all* static.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

I must be missing something, On my windows 2000 and 2003 boxes I can set a
dynamic ip address and a static dns server.

--
Steven Cooke


"Lanwench [MVP - Exchange]"
<(E-Mail Removed) ahoo.com> wrote in message
news:%(E-Mail Removed)...
> (E-Mail Removed) wrote:
> > Because it's for servers and we prefer to have static
> > addressing of servers.
>
> Ah, you didn't say that. I agree, all servers should have statics. You'll
> need to enter everything in manually - you can't have a static IP and a
> dynamically assigned DNS server, etc.
> >
> > Also, our servers have their NICs teamed, and there is a
> > posibility that if one NIC goes bad and the server
> > reboots before we get a chance to fix it, when it comes
> > back up it will use the MAC address of the second NIC,
> > which means the reservation is useless.
> >
> >> -----Original Message-----
> >> Why not just use a DHCP reservation for its MAC address, so the rest
> >> of the info is assigned & can be easily changed?
> >>
> >> M. Darrow wrote:
> >>> Is it possible (via regedits or any other means) to
> >>> assign a static IP address to a machine, but still allow
> >>> it to pull it's DNS and WINS (for now) servers via DHCP?
> >>
> >>
> >> .
>
>