[Update 30-May-2016: New Apple Firmware 7.7.7 seems to fix the performance problem, making this technique work again. See https://forum.peplink.com/threads/3699-Using-Peplink-Balance-with-Apple-Airport-Guest-Network?p=27138&viewfull=1#post27138 ]
I have a Peplink Balance One, but due to its location inside a server closet, the wifi signal isn’t reaching as far as I want. I had an old Apple Airport Extreme wifi base station, and wanted to see if I could integrate it with the Peplink, when using the Guest network feature of the Airport.
It turns out, this is not very difficult if you know the secret steps:
- Make sure the Airport is on firmware 7.6.4 or later
- Set the Airport to Bridge mode
- connect the Airport with ethernet to your Peplink router
- Enable the Airport’s Guest Wifi network feature.
What Apple doesn’t tell you (but other folks have discovered) is that the airport guest network is VLAN tagged with ID 1003. So, to make this work on the Peplink side:
- Make sure your PepLink is on 6.1.2 or later
- On Network/LAN click the “?” button and switch to multiple VLAN settings
- Leave your default Untagged LAN alone, but click the button to make a new VLAN
- Name it something descriptive “Guest VLAN”
- Give it a network range that is different from your main network. For example, my main network is 10.0.AAA.x - so I set my guest VLAN to 10.0.BBB.x
- Enable DHCP with a range that matches
- Un-check the Inter-VLAN routing checkbox to isolate the Guest network from your default network.
Save and apply your settings, and reboot the Airport, and test. What you should see is that the guest network connects, and users will get a DHCP address in the guest network range, and they are isolated from main network.