🚀 go-pugleaf

ok heres my deal.....
I have a block of IP's assigned to my company. and I have assigned my
machines to IP's .....
the block is :
204.216.153.0   to  204.216.153.60
of course these arent the real IP's but this is what I am triing to do....
my router is assigned to  204.216.153.1
this connects me to the INET
my mail server is on 204.216.153.2
all of my other machines are from there up to 30
I have a novell netware machine as my file server and I am bringing up a
DHCP server.
oh yea my subnet mask is 255.255.255.192
and my name servers are 192.188.712.21 and 18 at my ISP
I want to be able to have this dhcp server running(it already is) 
and have some machine connect to it. they have, but what do I use as the
subnet mask in the scope? and what about the name servers....I use the
subnet in my scope and it says I can't do that. what I want is to be able
to have some machines connect to the DHCP server, and get a dynamic IP and
be able to see all the other machines in the network like before when they
were static IP's. but as of now they don't see them. also I want them to be
able to get onto the INET and to get their mail at our mail server which I
mentioned before. how do I configure the scope on the dhcp server and  how
do I configure the client? and how do I get them on the INET? wingate?
thanks alot,
budding engineer.
I hope.