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DHCP binding, with MAC access-list

Hello Friends,

                    I have a wireless internet service in my network that serve only allowed people to access internet via WI-FI.

currently the situation is..

- trunk connects the whole access points to the main cisco c3750 "IP service" switch which connected to to multiple internet modems.

- all these all modems are in same vlan "the trunk for a specific another service where other vlans created and management".

- A DHCP bindings are created on this switch to give IP for these allowed PC based on there MAC address and the gateway in the binding to control there internet connection used.

- to stop any client from changing their default gateway "internet connection to use" we have configured the modems to accespt connection from only these allowed IP attached with these mac addresses.

recently we will have to clear all these bindings on the internet connections so I have to put all configuration "Assigning IPs and internet line to use restriction" on the same c3750 switch.

I thought of adding a mac access-list to for source and destination mac address for every client and apply it to the trunk port...BUT,

 As i think, this would block the clients devices from querying the DHCP and lease IP from the binding that is created for it based on it's mac address.

PLZZZZ, any suggestion on how to allow to request IP address and same time block if they change their default gateway on their devices?

may be class map or policy based routing "if they can handle mac addresses" ... any suggestions please?

Thank you in advance,

1 Reply 1

Well,m I have made a lab and I found that the mac addresses lists working and the DHCP server still reachable for the clients.

if anyone approve this!!!!

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