ipip - an IP over IP encapsulation daemon

       This package was originally written by Mike Westerhof for SunOS.  Bdale Garbee ported  it  to  HP-UX  and
       BSD/OS.  Ron Atkinson and John Paul Morrison then provided the tweaks for Linux.

       The  package  is currently once again being maintained by Bdale Garbee, both as "upstream maintainer" and
       as maintainer of the Debian GNU/Linux ipip package.

                                                                                                         IPIP(1)

       This is a user-space daemon that supports encapsulation of IP over IP.  Modern Linux kernels provide this
       ability  in  the  kernel,  but  consume  an interface per encapsulated link.  This can be impractical for
       virtual networks built up of a large number of encapsulated links, such as is the case with  the  amateur
       radio net-44 network.  The ipip daemon is often a better solution for these environments.

       There  is  very  little  documentation  on  the  daemon  at  this  time.   Look  for  the  README file in
       /usr/share/doc/ipip, and the example config files also in that tree.

       ipip - an IP over IP encapsulation daemon

ipip