Hamachi requires TUN/TAP device driver to create and manage virtual
network interface. If you have /dev/net/tun file, you are all set.
Otherwise visit the following page for more information -
Unless you are planning to use Hamachi exclusively from under the
root account, you will need to run 'tuncfg' daemon. This daemon
encapsulates all root-level functionality required by Hamachi and
it must be running prior to launching Hamachi itself.
Tuncfg is distributed in a source code under the BSD license. You
can find the source code in ./tuncfg directory of this distribution.
Running 'make install' automatically builds tuncfg and installs it
in /sbin folder. If you would prefer to install it in altervative
directory, modify ./Makefile accordingly.
Full README here