DHCP Server

[Manoj Salian]

I am having windows 2000 server which acting as DHCP
server i want to setup two scope one 172.16.10.1 and
subnet will be 255.255.0.0 and 2nd 172.16.20.1 and subnet
will be 255.255.0.0

Know i want to my account dept. to use 1st scope(i.e
172.16.10.1)
and for the R & D 2nd scope (i.e 172.16.20.1)
is it possible if yes pls tell me how to configure client
end.



Regurds


Manoj

 

[Scott Harding - MS MVP]

You can most likely achieve this goal with Class ID's. Check out the DHCP
help file for more information. This will entail touching every machine and
entering a particular ID that relates to a particular scope but this is only
a one time config for the client.

 

[Dusko Savatovic]

This will not be possible the way you planned.
You are using 16-bit netmasks (255.255.0.0)
This means that you have 2^16-2=65534 hosts in your subnet.
However, you don't have two subnets, you have one.
What you think are subnets (172.16.10.0 and 172.16.20.0) is in fact one big
class B subnet (172.16.0.0/16)

Suggestion

1. Use 24-bit netmasks (255.255.255.0). This should be enough if you have up
to 2^8-2=254 hosts per network segment.

2. Create two scopes
a) 172.16.10.0 netmask 255.255.255.0 (24 bits)
b) 172.16.20.0 netmask 255.255.255.0 (24 bits)

3. Connect two subnets with router(s)
Configure access to DHCP server using a) or b) solution
a) Configure router(s) to be RFC 1542 compliant
b) Install and configure DHCP relay agent service on subnet that does not
have DHCP server.

Dusko Savatovic