⚡ KCP - A Fast and Reliable ARQ Protocol

Official git repo for iodine dns tunnel

Transparently tunnel your IP traffic through ICMP echo and reply packets.

A lightweight, fast and reliable tun2socks

Bidirectional data stream tunnelled in HTTP requests.

A censorship circumvention tool

Tunnel TCP connections through ICMP.

Light-weight, secure and modular VPN solution which makes use of NaCl encryption (also available for Android using jnacl in "sigmavpn-android")

A Simple Point-to-Point tunnelling implementation in C

Cross-platform terminal tunnel tool

Linux TUN/TAP wrapper for Python

EoIP/EoIPv6 for *nix.

A simple VMess proxy implementation written in C.

Socket over DNS tunnel

Create an UDP-over-UDP reverse tunnel to make a VPN server behind (CG-)NAT accessible from the outside

BMX7 / SEMTOR Securely Entrusted Mesh Routing Protocol

ICMP/IP tunnel manager for Linux.

High-performance multi-path covert channel over DNS

sixxsd - The SixXS Daemon - IPv6 Tunnel & Routing Engine