1 DHCP and 2 subnet scope ?

[J.H]

Hi there,

May any one help me with question as:

DHCP1 server on 192.168.1.x/24
DHCP client using 95% of 192.168.1.x scope

Attempt:
add another scope 192.168.2.x/24 to the current DHCP1
(the routing is already solved between 192.168.2.x <-> 192.168.1.x)

Question:
Can we have 2 subnet scope on the same LAN on the same DHCP server?
so the 1st scope is out,so client will pick up the second scope to use ?

Please help!!
Thanks

 

[Marc Reynolds [MSFT]]

yes you can create the second scope, but to get it to work you will need to
combine scope 1 and 2 into a superscope. See:

161571 Using DHCP "Superscopes" to Serve Multiple Logical Subnets
http://support.microsoft.com/?id=161571

--

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.

 

[J.H]

Hi Marc,

I also found things like you said. Thanks so much for the input.

My question: how do DHCP superscope assign IP for DHCP clients ?

If I combine superscope (1st: 192.168.1.x & 2nd: 192.168.2.x),
how the DCHP clients (assumed on the same network switch) are
going to use the scope in order ? such as:

- Will the DHCP server assign IPs randomly within the combined scope
(superscope) for the DHCP client the IP from superscope ?
(either 192.168.1.x and/or 192.168.2.x)

- Will the DHCP server provide the last of 1st 192.168.1.x, then
it will send DHCPACK for 2nd 192.168.2.x for the DHCP client request ?