Mapping roaming MAC addresses to .1q vlans.

Hello!

I have a customer who needs to have roaming machines on a
large network, and wants each roaming machine to end up on
a separate .1q VLAN.  The machines themselves do not speak
VLAN, so there will need to be a switch to do the magic.
Since the VLANs should follow the machines, I figure that what
really needs to happen is to map the MAC to a particular VLAN.

Each of these individual .1q VLANs needs to be trunked out
over a single (or small number) of interfaces.  On the other
side of the trunk connection, I need another VLAN switch to bridge
all of the VLANs so that VLAN X can talk directly with VLAN Y.
(I do NOT want any routers involved:  This should be a flat subnet.)

Please note that it is very important that the switch nearest the
roaming machines NOT bridge vlans...I need to force the traffic
over the VLANs on the trunked interface.

Does anyone know if this can be done with Cisco switches?  If so,
please let me know some example commands or at least the general
concept.

I'll probably need to prototype this:   Any suggestions for a capable (enough)
but affordable 10/100 24-port or so Cisco switch?

Thanks!
Ben

-- 
Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com