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Tunnelling IP (cont)

  • (Details at:
  • Tunnelling IP to make a poor man's VPN turns
  • the established SSH link into a "virtual modem"
  • connection:
  • /sbin/pppd sshd ssh /sbin/pppd
  • Work (ppp0) Encrypted Home (ppp0)


    The HOWTO has all the details. I've only done this
    as a test example and have not used it extensively.

    The pppd processes have to be
    attached to a pseudo-terminal; std I/O won't work.
    So the pppd's are opening say /dev/ttyp7 instead
    of /dev/modem. This fools them into thinking it is
    a real device. If the remote or local machine is not
    Linux, there will be some variation of the commands.

    Note, the ssh processes can also have -L and -R
    redirs acting as "sidebands" in this setup. Perhaps
    the sideband is used in emergencies, or for performance