dockerfiles/hans/README.md

hans

Hans makes it possible to tunnel IPv4 through ICMP echo packets, so you could call it a ping tunnel.

docker-compose.yml

hans:
  image: vimagick/hans
  environment:
    - NETWORK=10.1.2.0
    - PASSWORD=password
  net: host
  privileged: yes
  restart: always

Server Setup

# Start Server Program
$ docker-compose up -d

# Enable Masquerade (Method A)
$ iptables -t nat -A POSTROUTING -s 10.1.2.0/24 -o eth0 -j MASQUERADE

# Enable Masquerade (Method B)
$ firewall-cmd --add-masquerade

Client Setup

# Start Client Program
$ hans -f -c 1.2.3.4 -p password

# Access Server Directly
$ ip route add 1.2.3.4 via 192.168.1.1

# Change Default Route (Method A)
$ ip route change default via 10.1.2.1

# Change Default Route (Method B)
$ ip route add 0.0.0.0/1 dev tun0
$ ip route add 128.0.0.0/1 dev tun0