This small script allows using ICMP PING packets as a transport layer for Reticulum. It consists of two parts: a client and a server. The server must have a public IP address (or any other way for the client to ping it). The client only needs a computer. One server can serve any number of clients.

1. Install dependencies:

   pip install scapy

2. Grant Python access to low-level sockets:

   sudo setcap cap_net_raw,cap_net_admin+eip /path/to/your/bin/python

3. Add a PipeInterface to your ~/.reticulum/config file on both the server and the client.

[[ICMP Interface]]
    type = PipeInterface
    enabled = True
    command = python3 /path/to/your/icmp_tunnel.py --dst <server-ip> client
    # or you can use my public server at rns.obomba.tech

    # Optional: delay before respawn in seconds
    respawn_delay = 2
    name = ICMP Interface

[[ICMP Interface]]
    type = PipeInterface
    enabled = True
    command = python3 /root/icmp/icmp_tunnel.py server --iface <eth0 or other interface name>

    # Optional: delay before respawn in seconds
    respawn_delay = 2
    name = ICMP Interface

4. Start the Reticulum daemon:

   rnsd