The present IP scheme is a mess and I'm getting a T1 line with a Cisco

firewall and new IP addresses and scheme. This all on two NW5.1sp5
one being the primary dhcp server. My question is in the management
can I create the new subnet with all the new IP and gateway info,
while the
current one is in place and running? Or does the dhcpsrvr.nlm need to
unloaded and the current config deleted first? Of course this
snowballs into
the fact I have to bind new IPs to the servers, can they coexist
temporarily? Any help with this, will save me. Thanks