Do you mean that you are creating reservations in DHCP (you say "statically assign")? If that is the case, then what you will have to do is create a reservation in EACH subnet that a given user would hit. Since they are in different subnets, though, it would mean different addresses (or else networking wouldn't work).
If you want to simply use DHCP, you have to create different scopes for each subnet and then turn on DHCP relay on the switches. When the switch relays the DHCP request, it tells DHCP from where the request came and DHCP will then give out an address in the appropriate scope. Bill Mayo -----Original Message----- From: Matthew W. Ross [mailto:[email protected]] Sent: Thursday, July 23, 2009 1:38 PM To: NT System Admin Issues Subject: DHCP and multiple Subnets; Multiple DHCP server or DHCP-Relays? Hey list. Since nobody had a good network mailing list, I'll as my question here. We have a large flat network which I'm looking at splitting up. It was 10.x.x.x/8, looking to bring it to several 10.20.x.x/16s. I've got my configuration of the router figured out, except DHCP. We statically assign our IPs to individual machines... but I don't see how that's possible with a routed network like this... especially for mobile users who move across subnets from time to time. I could install a DHCP server for each subnet, but this could be tedious. Using my switch's DHCP-Relay seems like a good idea, but if a user moves to a different subnet, won't that user get an invalid IP address? Any other ideas on how to get past this? --Matt Ross Ephrata School District ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
