OpenWRT

OpenWrt is the most popular open-source router firmware, with strong community support.

Official Website: https://openwrt.org/

Latest Stable: 23.05.x (2024)

OpenWrt is a Linux-based embedded operating system designed specifically for routers and network devices.

• Completely open source and free, community-driven
• Supports 1000+ devices

1. Highly customizable, modular design

• Powerful package manager (opkg)
• Supports ARM, MIPS, x86 architectures
• Built-in firewall, VPN, QoS
• Manageable via LuCI Web interface

• Archer C7 (v1/v2) - Full support
• Archer AX6000 - Good support
• Archer AX3000 (NX30 Pro) - Requires Telnet unlock before flashing
• Archer C9 - Good support

• Xiaomi AX3600 - Requires Bootloader unlock
• Redmi AX6/AX6S - Requires unlock
• Xiaomi WR30U - Requires TTL flash
• Redmi AC2100 - Mature support

• RT-AC68U / RT-AC1900P - Full support
• RT-AX86U / RT-AX88U - Good
• RT-AX58U / RT-AX82U - Good

• R7800 (Nighthawk X4S) - Full support
• R7000 / R7000P - Good
• R6400 / R6220 - Basic support

• WRT3200ACM - Excellent support
• WRT1900ACS / WRT1900AC - Good
• EA8500 - Full support

1. Download sysupgrade.bin or factory.bin for your model
2. Enter OEM Web management interface
3. System Tools → Firmware Upgrade
4. Select file and upload

1. Rename firmware to openwrt.bin or specified name
2. Set computer IP to 192.168.1.x
3. Run TFTP server
4. Router enters recovery mode

cd /tmp
wget http://example.com/openwrt.bin
mtd write openwrt.bin firmware
reboot

• luci-app-firewall - Firewall
• luci-app-opkg - Online package updates
• luci-app-sqm - QoS traffic shaping
• luci-app-vpn - VPN client/server
• luci-app-adblock - Ad blocking
• luci-app-wireguard - WireGuard VPN
• curl - Command line download tool

• Default IP: 192.168.1.1
• No default password (set on first use)
• Username: root

1. Restore via sysupgrade -n
2. Or flash OEM firmware via TFTP

cat /dev/mtdblock0 > /tmp/boot.bin
cat /dev/mtdblock1 > /tmp/kernel.bin
cat /dev/mtdblock2 > /tmp/rootfs.bin
# Export backup via SCP/SFTP

• Website: https://openwrt.org/
• Downloads: https://downloads.openwrt.org/
• Firmware selector: https://firmware-selector.openwrt.org/
• Forum: https://forum.openwrt.org/
• Device support list: https://openwrt.org/toh/start