How to use Telus Actionec T3200M as a wireless Access point

when you install Telus Internet, they will offer you a modem + router + wireless device Actionec T3200M, a lot of users still want to use their own third party router or firewall same as me, so we need enable the bridge function of T3200M and connect our own router or firewall to Port 1 of T3200M, so our router will get a additional external IP, but how can take advantage the of strong wireless signal of T3200M, there is an issue here, in T3200M, no option for us to disable the function of DHCP server, that DHCP server will setup default gateway as itself, so for the clients connect to wireless of T3200M, the traffic won't hit our own firewall, but how can I use that box as a wireless ap and use my own dhcp and firewall and routing function?

here is my solution:

1. setup the dhcp server  use the ip range 192.168.1.253-192.168.1.253
2. add a reserved IP reserve ip 192.168.1.253 for a virtual Mac address 00:00:00:00:00:00
done

explanation:
no more ip available in the pool of T3200M, so your own DHCP server will take care of the DHCP request from clients.