DHCP / Class ID question

There currently exists a DHCP servicing the physical network. I want to
create a virtual subnet on the physical network and it appears that User
Classes is the way for me to go, so all of the computers in my workgroup
will grab an IP address from my server and everybody else in the building
will grab an IP address from theirs.

Using the default configuration of a Windows 2003 DHCP server, if a
workstation comes on and has a user class configured with the server ignore
the DHCP service request? In other words, as long as I add the user class
using

Ipconfig /setclassid “Local Area Connection” portable

on all of my machines is that all that needs to be done? Or does the other
server have to be configured to exclude any machine with that class string?

Configuring user class options or reservations on a DHCP server will not
prevent a client from receiving an IP from some other DHCP server on the
same physical segment.

Doug Sherman
MCSE, MCSA, MCP+I, MVP

"Wowbagger" <none> wrote in message
news:#U$(E-Mail Removed)...
> There currently exists a DHCP servicing the physical network. I want to
> create a virtual subnet on the physical network and it appears that User
> Classes is the way for me to go, so all of the computers in my workgroup
> will grab an IP address from my server and everybody else in the building
> will grab an IP address from theirs.
>
> Using the default configuration of a Windows 2003 DHCP server, if a
> workstation comes on and has a user class configured with the server
ignore
> the DHCP service request? In other words, as long as I add the user class
> using
>
> Ipconfig /setclassid "Local Area Connection" portable
>
> on all of my machines is that all that needs to be done? Or does the
other
> server have to be configured to exclude any machine with that class
string?
>
>

Just a note on terminology. A second network running on the same physical
segment as another is called a logical network, not a virtual network or
virtual subnet.

A virtual network is something different, and a subnet cannot be
virtual. A subnet exists, whether it is on a physical, logical or virtual
network.
..
"Wowbagger" <none> wrote in message
news:%23U$(E-Mail Removed)...
> There currently exists a DHCP servicing the physical network. I want to
> create a virtual subnet on the physical network and it appears that User
> Classes is the way for me to go, so all of the computers in my workgroup
> will grab an IP address from my server and everybody else in the building
> will grab an IP address from theirs.
>
> Using the default configuration of a Windows 2003 DHCP server, if a
> workstation comes on and has a user class configured with the server
> ignore the DHCP service request? In other words, as long as I add the
> user class using
>
> Ipconfig /setclassid "Local Area Connection" portable
>
> on all of my machines is that all that needs to be done? Or does the
> other server have to be configured to exclude any machine with that class
> string?
>
>