Etherpuppet is a small program for Linux that will
create a virtual interface (TUN/TAP) on one
machine from the ethernet interface of another
machine through a TCP connection. Everything seen
by the real interface will be seen by the virtual
one. Everything sent to the virtual interface will
be emitted by the real one. It has been designed
because one often has a small machine as his
Internet gateway, and sometimes want to run some
big applications that need raw access to this
interface, for sniffing (Ethereal, etc.) or for
crafting packets that do not survive being
reassembled, NATed, etc. It can even run on Linux
embedded routers such as the Linksys WRT54G.
