Redundant DHCP servers

I have a domain that consists of SBS2003 and W2k3 Server. I configured both to have DHCP services. Each service has a scope for the same subnet, BUT with non-overlapping IP blocks to assign. The problem is that one of the servers eventually "discovers" that there is another DHCP service active and it then shuts down after the appropriate event log errors (sorry -- don't have access to the error numbers but the message basically states what I said above).

From what I've read, this should be fine (having non-overlapping DHCP services). In pratice, I've done this many times before using W2KAdv Server (3 active DHCP servers) without a problem. Has something changed in W2K3? I've searched for hours and haven't located anything that says you can't do this in 2003. Anyone else go this configuraton working and how did you do it?
Gak!

On Fri, 9 Apr 2004 20:26:02 -0700, "jmanton"
<(E-Mail Removed)> wrote:

>I have a domain that consists of SBS2003 and W2k3 Server. I configured both to have DHCP services. Each service has a scope for the same subnet, BUT with non-overlapping IP blocks to assign. The problem is that one of the servers eventually "discovers" that there is another DHCP service active and it then shuts down after the appropriate event log errors (sorry -- don't have access to the error numbers but the message basically states what I said above).
>
>From what I've read, this should be fine (having non-overlapping DHCP services). In pratice, I've done this many times before using W2KAdv Server (3 active DHCP servers) without a problem. Has something changed in W2K3? I've searched for hours and haven't located anything that says you can't do this in 2003. Anyone else go this configuraton working and how did you do it?

Get the exact errors and post them. It sounds like you actually have
overlapping scopes, or at least the DHCP service thinks so.

Jeff

> I have a domain that consists of SBS2003 and W2k3 Server. I configured
both to have DHCP services. Each service has a scope for the same subnet,
BUT with non-overlapping IP blocks to assign. The problem is that one of
the servers eventually "discovers" that there is another DHCP service active
and it then shuts down after the appropriate event log errors (sorry --
don't have access to the error numbers but the message basically states what
I said above).


--
Herb Martin
"jmanton" <(E-Mail Removed)> wrote in message
news:133EA4AF-9C72-4B2E-91C4-(E-Mail Removed)...
>
> From what I've read, this should be fine (having non-overlapping DHCP
services). In pratice, I've done this many times before using W2KAdv Server
(3 active DHCP servers) without a problem. Has something changed in W2K3?
I've searched for hours and haven't located anything that says you can't do
this in 2003. Anyone else go this configuraton working and how did you do
it?
> Gak!

> I have a domain that consists of SBS2003 and W2k3 Server. I configured
both to have DHCP services. Each service has a scope for the same subnet,
BUT with non-overlapping IP blocks to assign. The problem is that one of
the servers eventually "discovers" that there is another DHCP service active
and it then shuts down after the appropriate event log errors (sorry --
don't have access to the error numbers but the message basically states what
I said above).

Sounds like you have an AUTHORIZATION problem.

Make sure that all of them are (right click) in the DHCP
Console.

Another thing: Both DHCP servers SHOULD have
OVERLAPPING scopes (really) and then each of them
should EXCLUDE the portion that the other one distributes.
(Really, really.)

--
Herb Martin
"jmanton" <(E-Mail Removed)> wrote in message
news:133EA4AF-9C72-4B2E-91C4-(E-Mail Removed)...
> I have a domain that consists of SBS2003 and W2k3 Server. I configured
both to have DHCP services. Each service has a scope for the same subnet,
BUT with non-overlapping IP blocks to assign. The problem is that one of
the servers eventually "discovers" that there is another DHCP service active
and it then shuts down after the appropriate event log errors (sorry --
don't have access to the error numbers but the message basically states what
I said above).
>
> From what I've read, this should be fine (having non-overlapping DHCP
services). In pratice, I've done this many times before using W2KAdv Server
(3 active DHCP servers) without a problem. Has something changed in W2K3?
I've searched for hours and haven't located anything that says you can't do
this in 2003. Anyone else go this configuraton working and how did you do
it?
> Gak!