icmptx - Tunnel IP over ICMP

       This manual page was written by Runa Sandvik <runa.sandvik@gmail.com>, for the  Debian  GNU/Linux  system
       (but may be used by others).

                                                                                                       icmptx(1)

icmptx allows you to pass IP packets via ICMP. Say that you are sitting in a cafe and you want to use the
       wireless  network, but it costs money. If that network allows ICMP traffic (i.e. you can ping machines on
       the Internet), icmptx is your friend.

       icmptx - Tunnel IP over ICMP

-s     Server mode

       -c     Client mode

       server The host name or IP address of the server

       icmptx [ -s | -c ] server