How to configure ubiquiti network equipment¶

• Table of contents
• How to configure ubiquiti network equipment
  • General steps
  • Upgrading most ubiquiti access points
  • Enabling ssh access without a password
  • Configuring Wifi
  • Installing OpenWRT on AP Lite/LR/Pro

General steps¶

• Reset the device
• ssh into it (username: ubnt, password: ubnt)
• Setup a password

Upgrading most ubiquiti access points¶

• Dowload the latest firmware from https://www.ui.com/download
• scp it to the device as /tmp/fwupdate.bin
• ssh into the device, run syswrapper.sh upgrade2 & (seems to need to be backgrounded)

Enabling ssh access without a password¶

• Add your public RSA (ed25519 don't work) to /etc/dropbear/authorized_keys

Configuring Wifi¶

• Download the "unifi network" app
• Go to account->standalone devices : wait for the aps to show up

Installing OpenWRT on AP Lite/LR/Pro¶

Stock ubiquiti does not work in IPv6 only environments. So replacing the stock firmware with OpenWRT makes them usable.

• Update ("downgrade") to firmware version 3.7.58
  • https://dl.ui.com/unifi/firmware/U7PG2/3.7.58.6385/BZ.qca956x.v3.7.58.6385.170508.0957.bin
• Get the latest openwrt image
  • Check https://openwrt.org/toh/ubiquiti/unifiac
• Use mtd to replace it
• Use mtd to erase kernel1
• Set the boot loader to 0
  • write a 0 o the mtd partition "bs"

Sample session (don't copy and paste)

[20:14] manager:~% wget http://downloads.openwrt.org/releases/19.07.3/targets/ath79/generic/openwrt-19.07.3-ath79-generic-ubnt_unifiac-lite-squashfs-sysupgrade.bin
[20:14] manager:~% scp openwrt-19.07.3-ath79-generic-ubnt_unifiac-lite-squashfs-sysupgrade.bin ubnt@[2a0a:e5c0:13:0:f29f:c2ff:fef3:cbe4]:
[20:14] manager:~% ssh ubnt@2a0a:e5c0:13::f29f:c2ff:fef3:cbe4    

BZ.v3.7.58# mtd write openwrt-19.07.3-ath79-generic-ubnt_unifiac-lite-squashfs-sysupgrade.bin kernel0

BZ.v3.7.58# mtd write openwrt-19.07.3-ath79-generic-ubnt_unifiac-lite-squashfs-sysupgrade.bin kernel0
Unlocking kernel0 ...

Writing from openwrt-19.07.3-ath79-generic-ubnt_unifiac-lite-squashfs-sysupgrade.bin to kernel0 ...     
BZ.v3.7.58# mtd erase kernel1
Unlocking kernel1 ...
Erasing kernel1 ...
BZ.v3.7.58# cat /proc/mtd 
dev:    size   erasesize  name
mtd0: 00060000 00010000 "u-boot" 
mtd1: 00010000 00010000 "u-boot-env" 
mtd2: 00790000 00010000 "kernel0" 
mtd3: 00790000 00010000 "kernel1" 
mtd4: 00020000 00010000 "bs" 
mtd5: 00040000 00010000 "cfg" 
mtd6: 00010000 00010000 "EEPROM" 
BZ.v3.7.58# dd if=/dev/zero bs=1 count=1 of=/dev/mtd4
1+0 records in
1+0 records out
BZ.v3.7.58# 
BZ.v3.7.58# reboot