Hi , I knew that in the cisco switches can use VPMS to assign VLAN Numbers to the port while the link coming up . Here is what cisco says about VMPS : " With the VMPS, you can dynamically assign switch ports to VLANs based on the source Media Access Control (MAC) address of the device connected to the port " You have to put your switch ports in Dynamic mode and configure your switch to assign the VLAN from the VMPS and also configure the VMPS . Then you can be sure that every MAC want to connect to your switches will be member of an specific VLAN. You can read more about VMPS and how to configure it from here : http://www.cisco.com/en/US/products/hw/switches/ps4324/products_configuratio n_guide_chapter09186a00801f5a19.html This link is for Catalyst 4500 Series, but you can find similar for any kind of cisco switches which support VMPS. --- Regards ================================================================= / Seyyed Hamid Reza / WINDOWS FOR NOW !! / / Hashemi Golpayegani / Linux for future , FreeBSD for ever / / Morva System Co. / ------------------------------------- / / Network Administrator/ hamid@xxxxxxxxx , ICQ# : 42209876 / ================================================================ -----Original Message----- From: vlan-bounces@xxxxxxxxxxxxxxx [mailto:vlan-bounces@xxxxxxxxxxxxxxx] On Behalf Of Ben Greear Sent: Saturday, March 26, 2005 11:54 PM To: vlan@xxxxxxxxxxxx Subject: [VLAN] 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 <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com _______________________________________________ Vlan mailing list Vlan@xxxxxxxxxxxx http://www.lanforge.com/mailman/listinfo/vlan
