Phil's technical blog : Using a DD-WRT router to NAT between two wireless segments
Configure DD-WRT as WiFi Repeater | Range Extender | Client Mode | dd wrt wifi extender | ddwrt - YouTube
Setting up a Client / Repeater in DD-WRT
networking - How to make DD-WRT router's (configured like a repeater) devices be accessible on LAN? (i.e. integrate DHCP for both routers) - Super User
How to Boost Your Wi-Fi Network Signal and Increase Range with DD-WRT