FireBrick 2700 with 4G ZTE MF823

From AAISP Support Site

A factory default FireBrick configuration will work with a ZTE MF823 dongle without any additional configuration

  • The FireBrick will DHCP an address in the 192.168.0.x range from the ZTE dongle
  • You can access the dongle's web interface via http:192.168.0.1
  • There will be NAT performed by the FireBrick and then again by the dongle

Changing the ZTE MF823 to 'modem' mode

Warning: This is still in progress and does not work

The ZTE823 works as an Ethernet device by default, it is possible to change the mode so that it works as a modem. The idea here is that rather than the dongle NATing the connection it can be a modem and the FireBrick will be given the public WAN IP address directly.

Switching to Modem Mode

 
Disabling Autoconnect
  1. Disable auto-connect:
    • Go to http://192.168.0.1
    • Click on Home
    • Click Disconnect
    • Click Settings
    • Click Network settings
    • Click Dial-up settings
    • Click the radio button labeled 'Manual'
  2. Put the Dongle into download mode:
  3. Next, the FireBrick should see the dongle as a modem
  4. TODO - HOW TO CONFIGURE THE FIREBRICK TO USE THE DONGLE

Switching back to Ethernet mode

To put the dongle back to Ethernet mode you will need to connect the dongle to a computer in order to send it some commands via a serial terminal

  1. Open gtkserial or another serial terminal (or simply echo the following AT commands to /dev/ttyUSB2):
ATZ
AT&F
AT+ZCDRUN=9
AT+ZCDRUN=F 

Disconnect the modem from the computer and reconnect it to the FireBrick