Tun2socks Guide - Using a Socks5 Proxy with Wintun Device on Windows

This guide provides detailed instructions for configuring a Socks5 proxy with a wintun device on Windows systems. Follow the steps below to set up your Socks5 proxy connection.

Prerequisites

• Make sure you have tun2socks installed and configured correctly on your system.
• You will also need details of your Socks5 proxy server (host and port).
• Administrative privileges on your system to execute network configuration commands.

Configuration Steps

1. Set Up the Socks5 Proxy: Configure the tun2socks to use the Socks5 proxy by replacing host and port with your proxy server's host address and port number.

   tun2socks -device wintun -proxy socks5://host:port

2. Find the Default Gateway: Identify the IP address of your default gateway using this command:

   ipconfig | findstr /r /c:"Default Gateway.*:"

3. Configure Wintun Device IP Address and Subnet Mask: Set the IP address and subnet mask of the wintun device. Replace 10.10.10.1 and 255.255.255.0 with your chosen IP and subnet mask.

   netsh interface ip set address name=wintun source=static addr=10.10.10.1 mask=255.255.255.0 gateway=none

4. Add DNS to Wintun Device: Add a DNS server to your wintun device configuration:

   netsh interface ip add dns name=wintun addr=1.1.1.1

5. Disable IPv6 Forwarding: For security, disable IPv6 forwarding on the wintun device:

   netsh interface ipv6 set interface wintun forwarding=disabled

6. Set Default Route for Wintun Device: Configure the default route for all traffic to go through the wintun device:

   route add 0.0.0.0 mask 0.0.0.0 10.10.10.1 metric 5

7. Add Route to Specific Server IP: If needed, add a route to ensure traffic for a specific server IP goes through the correct gateway. Replace [server ip] and [Default Gateway] with the actual IPs.

   route add [server ip] mask 255.255.255.255 [Default Gateway] metric 5

Notes

• Replace placeholders (e.g., [server ip], host, port, 10.10.10.1) with actual values before running the commands.
• The steps involve making significant changes to your network configuration. Ensure you understand each step and its consequences.
• These instructions are for the Windows command-line interface and assume you are running the commands with administrative privileges.

Troubleshooting

If you encounter any issues, ensure that:

• The host and port details are correct for your Socks5 proxy server.
• There are no typos in the commands you have entered.
• You have the necessary privileges to alter your network settings.
• Your firewall or antivirus software is not blocking tun2socks connections.

For detailed tun2socks documentation, refer to the official tun2socks repository.