NAME

     me — encapsulating network device

SYNOPSIS

     To compile the driver into the kernel, place the following line in the kernel configuration
     file:

           device me

     Alternatively, to load the driver as a module at boot time, place the following line in
     loader.conf(5):

           if_me_load="YES"

DESCRIPTION

     The me network interface pseudo device encapsulates datagrams into IP.  These encapsulated
     datagrams are routed to a destination host, where they are decapsulated and further routed
     to their final destination.

     me interfaces are dynamically created and destroyed with the ifconfig(8) create and destroy
     subcommands.

     This driver corresponds to RFC 2004.  Datagrams are encapsulated into IP with a shorter
     encapsulation.  The original IP header is modified and the modifications are inserted
     between the so modified header and the original payload.  The protocol number 55 is used for
     outer header.

NOTES

     For correct operation, the me device needs a route to the decapsulating host that does not
     run over the tunnel, as this would be a loop.

SEE ALSO

     gif(4), gre(4), inet(4), ip(4), netintro(4), protocols(5), ifconfig(8), sysctl(8)

AUTHORS

     Andrey V. Elsukov <ae@FreeBSD.org>