Using 1 DHCP server for multiple VLANs

[darren_gauntlet]

Hi, I am hoping you can provide some advice please?

I have a setup which consists of a 7450 and a number of 7150 switches. I am using D-PSK to drop clients onto their own VLANs (there are around 150 of them).

The VLANs are set up on the switches but I am trying to work out how to handle the DHCP. Should I run a DHCP server for each VLAN or can I run one DHCP server that covers all VLANs with 1 very large IP range and then subnet this up and set the VLAN IP addresses and DHCP helper on each VLAN to allow users to end up in their own VLAN and only able to communicate with other devices within their VLAN (so only devices which use the same D-PSK) or am I missing something here?

Sorry if I have the terminology wrong - I'm one of those Sales types rather than a techie 😉