TCP Over ICMP

Using these client and server scripts, one could tunnel TCP over ICMP using raw sockets.

Installation

This python project is built with native python libraries, no special installation are needed. Although this project can be run locally, one would rather use docker and docker-compose in order to simulate a separate client and tunnel servers.

How to run

# The template for running the tunnel server and the client is as follows:

# HOST_TO_TUNNEL is the host we would like the client to reach. We are specifying this so that we could pass that to the `client.py` script.
TARGET={HOST_TO_TUNNEL} PORT={TARGET_PORT} docker-compose up

# We are telling the client (through the docker container) to send a GET request to the HOST_TO_TUNNEL with URI.
docker-compose exec client curl https://127.0.0.1:8000/{URI} --header 'Host: {HOST_TO_TUNNEL}'  --insecure

Examples

# Spawning a server and a client:
TARGET=ynet.co.il PORT=443 docker-compose up

# Sending a GET request to ynet through the tunnel!
docker-compose exec client curl https://127.0.0.1:8000/home/0,7340,L-8,00.html --header 'Host: www.ynet.co.il'  --insecure

# Spawning a server and a client:
TARGET=stackoverflow.com PORT=443 docker-compose up

# Sending a GET request to stackoverflow through the tunnel!
docker-compose exec client curl https://127.0.0.1:8000/ --header 'Host: www.stackoverflow.com'  --insecure 

# Spawning a server and a client:
TARGET=google.com PORT=443 docker-compose up

# Sending a GET request to stackoverflow through the tunnel!
docker-compose exec client curl https://127.0.0.1:8000/index.html --header 'Host: www.google.com'  --insecure