Tethering from Android to Android via USB cable

Requirements

• Termux: Install from F-Droid.
• Termux-API

Usage

1. Download file from release and extract it.
2. Run ./install.sh.
3. Connect to device.
4. Run ./gnirehtet run.

USB ADB Connecting

Tethering device: The device sharing its internet connection.

Tethered deivce: The device want to connect to internet through 'tethering device'.

1. Make sure to turn on USB debugging on tethered device.
2. Run adb start-server on tethering deivce.
3. Connect two android device via USB cable.
4. Set USB controlling mode:
   • Tethering device: USB controlled by connected device
   • Tethered device: USB controlled by this device
5. Allow permission to access file system and USB debugging.
6. Running adb devices on tethering device should print connected device.

How it works

gnirehtet was originally for reverse-tethering, sharing PC's internet connection to Android device, using adb. I recompiled gnirehtet to make it executable on aarch64 Termux.

To run adb and connect to another device on Android, I used termux-adb.

Build

gnirehtet relay server

The binary of relay server (gnirehtet) in this repository was built for Termux, aarch64. However, you may want to build relay server yourself to run on difference environment.

To build relay server:

1. Install cargo to build Rust.
2. Run build-gnirehtet.sh script.

Compiled binary (named gnirehtet) will be located in the same directory where the script is executed.

gnirehtet android app

Normally gnirehtet android app would works on most device so you don't need to build it yourself. The apk file in this repository is from official gnirehtet release.

To build android app: gnirehtet/DEVELOP.md

Related projects

• termux-adb
• gnirehtet