multiple dhcp scopes for single vlan/subnetting
Posted on 2009-02-12
We currently have a vlan64 with a /24 subnet mask. Our ip range is x.x.64.0 -> x.x.79.254, and we have a microsoft dhcp server setup to provide IP addresses for our clients in x.x.64.10-> x.x.64.200. We now have a need to provide a building with separate ip addresses in the same /24 subnet range, for instance x.x.66.x. I can manually set the clients to that ip address (IE x.x.66.10) and they can route and communicate fine. However, I don't know if there is a way to force clients in this building to use a specific dhcp scope. Are there any configurable options on the switch?
As a thought, I tried creating a separate vlan 66, created an interface on the vtp master switch (cisco 3750), and attaching clients to that vlan, but they cannot route (static ip) or grab a dhcp address. I cannot set an ip address on that interface either:
>ip address x.x.66.x 255.255.240.0
x.x.64.0 overlaps with Vlan64
I am hoping someone might have some insight on how to do this. I'd rather not have to break up the vlan, we'd have quite a bit of reconfiguration to do on static devices.
(Edit: sorry, for whatever reason this question got added to the vpn zone. I don't see a way to remove it from that zone....)