----- Original Message ----- 
From: "Sam Deckert" 

> The problem is the client wants to use DHCP, so that people in the offices
> can simply plug in and away they go.  But how would you go about
> implementing a DHCP server in this situation??  In order to allocate an
> address from the appropriate range, the DHCP server needs to be aware of
the
> VLAN that the client DHCP request came from.  I have not been able to find
a
> DHCP server that has this capability whatsoever.  I am sure this has been
> done before - does anyone know how or have any suggestions??

At the edge of each VLAN, an instance
of router subinterface is obviously needed.
You can configure at each subinterface
ip helper address  pointing to a real dhcp
server located anywhere.
Router then forwards any dhcp requests
broadcasted by stations in vlans with
apopriate subnet  info, that dhcp server can
use a defined scope for each vlan.
Server than answers with lease data to the
requestor via directed broadcast.
(im not sure if such way)

For example NT dhcp server service
works flawlessy with such topology,
with many different scopes.

Pawel/




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