Implementation


Uses libdnet
simplified, portable interface to several low-level network routines: addr, arp, blob, eth, fw, intf, ip, rand, route
*BSD, MacOS X, Linux, Solaris, HP-UX, Windows 2000, IRIX, etc.
http://libdnet.sourceforge.net/

Portable packet interception is difficult
Tunnel device (*BSD, only OpenBSD by default) - no local targets
Divert sockets (FreeBSD, some Linux)
Universal TUN/TAP driver (Linux, FreeBSD, Solaris)
Linux ethertap device
Linux userlink device