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tunnel-wireguard-udp2tcp

tunnel-wireguard-udp2tcp

Tunnel WireGuard UDP tunnel traffic over TCP using socat

Prerequisites

  • Install WireGuard on server and client
  • Adjust WireGuard interface to use smaller MTU=1280
  • Running WireGuard server

Features

  • Stable – restarts on disconnect
  • Few dependencies – just bash and socat

Usage

  • On the WireGuard CLIENT
    • Edit REMOTE_IP on the client system
    • Start the tunnel-wireguard-udp2tcp-client.sh
  • On your WireGuard SERVER
    • Make sure WireGuard server is running
    • Start “nohup tunnel-wireguard-udp2tcp-server.sh”

Example WireGuard configurations

Example WireGuard server configuration wg0.conf

[Interface]
Address = 10.10.10.1/32
PrivateKey = cP/qYOURSERVERPRIVATEKEYGOESHEREfsfad9Llfkc=
ListenPort = 51820
MTU=1280

[Peer]
PublicKey = oEzMV/70AjYOURCLIENTPUBLICKEYGOESHEREOewPPVQ=
AllowedIPS = 10.10.10.2/32

Example WireGuard client configuration wg0.conf

[Interface]
PrivateKey = ++YOURCLIENTPRIVATEKEYYOURCLIENTPRIVATEKEY!=
Address = 10.10.10.2/32
MTU = 1280

[Peer]
PublicKey = YOURPUBLICKEYGOESHEREYOURPUBLICKEYGOESHERE!=
AllowedIPs = 10.10.10.1/32
Endpoint = 1.2.3.4:51821 # YOUR WG SERVER IP

Validated setups

Known to work on:

  • Linux
  • FreeBSD
  • Windows
    • Using Cygwin64 version of socat
    • Using WireGuard Go version by Jason A. Donenfeld

Contributing

  1. Fork it!
  2. Create your feature branch: git checkout -b my-new-feature
  3. Commit your changes: git commit -am 'Add some feature'
  4. Push to the branch: git push origin my-new-feature
  5. Submit a pull request 😀

History

  • 2019 November 10 – Initial version

Credits

  • Jason A. Donenfeld for WireGuard tunnel interfaces
  • Gerhard Rieger for socat – Multipurpose relay (SOcket CAT)
  • Glenn Chappell for figlet
  • Raghu Rajagopalan for tunnel the tunnel idea

BSD 2-Clause License

Copyright (c) 2019, Leroy van Logchem All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.