Extending an Airport Extreme wireless network with DD-WRT

Parts used:

  • Airport Extreme w/ 7.6.3 firmware
  • Buffalo WZR-300HP running DD-WRT (factory default)

Step 1: Configure the Airport Extreme to use “WPA2 Personal” as the Wireless Security type

Screen Shot 2013-05-07 at 7.44.00 AM


Step 2: Physically connecting the Buffalo router to your computer is the easiest way, if you do not have an ethernet port you can connect using a wireless link. Configure the Buffalo WZR-300HP (or any DD-WRT router) as follows:

  • Wireless Mode: Client Bridge (Routed) – this creates a secondary subnet
  • Wireless Network Mode: BG Mixed
  • Wireless Network Name (SSID): set to the same SSID as your Airport Extreme network
  • Click ‘Save’

Step 2b: Add a virtual interface by clicking ‘Add’ under the Virtual Interfaces section and configure the following:

  • Wireless Mode: AP
  • Wireless Network Name (SSID): set to something DIFFERENT than your Airport Extreme network SSID
  • Click ‘Save’

Screen Shot 2013-05-07 at 7.43.04 AM

Step 3: Click on ‘Wireless Security’ and configure the following:

  • Security Mode: WPA2-PSK
  • WPA Algorithms: AES
  • WPA Shared Key: the same password you used while configuring the Airport Extreme wireless security password
    I also clicked ‘Unmask’ just to be certain
  • Click ‘Save’

Step 3b: Set the security mode and password for your extended wireless network:

  • Security Mode: Can use whatever you want, even leaving it open. I chose the same as my primary network to keep things simple.
  • WPA Algorithms: Again, you can use whatever you want, I chose TKIP+AES
  • WPA Shared Key: I set mine to the same as my primary network
  • Click ‘Save’
  • Click ‘Apply’, it will take up to 2 minutes for the Buffalo router to reboot




Screen Shot 2013-05-07 at 7.43.24 AM

At this point if you are physically connected to the Buffalo router you should have internet access – you can also connect to it via the new SSID you configured and should still have an internet connection.

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