Hans makes it possible to tunnel IPv4 through ICMP echo packets, so you could call it a ping tunnel. This can be useful when you find yourself in the situation that your Internet access is firewalled, but pings are allowed.
new versions: https://sourceforge.net/projects/hanstunnel/files/source/
use for compile:
sudo apt install make gcc g++ net-toolscd hans-1.1
make
sudo cp ./hans /usr/sbin/hans
for create SERVER use:
nano /etc/systemd/system/hans.serviceinsert
[Unit]
Description=Hans IP over ICMP Server
After=network.target
[Service]
ExecStart=/usr/sbin/hans -s 10.2.2.0 -p you-secret-password -d tun0 -a 10.2.2.1
Restart=always
User=root
Group=root
RestartSec=3
PIDFile=/var/run/hans.pid
[Install]
WantedBy=default.target
and add you service:
sudo systemctl daemon-reload
sudo systemctl enable hans.service
sudo systemctl start hans.service
for create CLIENT use:
nano /etc/systemd/system/hans.serviceinsert
[Unit]
Description=Hans IP over ICMP Client
After=network.target
[Service]
ExecStart=/usr/sbin/hans -c you-server.com -p you-secret-password -d tun100 -a 10.2.2.100
Restart=always
User=root
Group=root
RestartSec=3
PIDFile=/var/run/hans.pid
[Install]
WantedBy=default.target
and add you service:
sudo systemctl daemon-reload
sudo systemctl enable hans.service
sudo systemctl start hans.service
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