Some VLAN's globally??? (Score 1, Informative)

I don't know enough about your environment but hopefully you know that that isn't a possibility across Layer 3 devices (and when I say VLAN's, I assume that you are talking about an IP segment and not just a VLAN number). That said the "ip dhcp helper" or DHCP relay I think is what you are looking for. This way you can have 1 DHCP server serving numerous VLAN's or L3 IP segments. If you have more specific questions feel free to reach out to me.

Carl Fugate
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