Description

UDP relay with blowfish encryption.

UDP client <-> udpenc <-> public network <-> updenc <-> UDP server.

May also use stdin/stdout instead of UDP sockets.

Can be used to implement PPP over UDP in more secure way.

Tested with pppd on Linux on one end and slirp.exe on Windows on the other end. If it don't work, please send a bug report to email vi0oss at server gmail.com. (if it works, please send too).

Example

Host A:
socat exec:"udpenc key_file - - - l 0.0.0.0 8888 2" exec:"slirp -P"

Host B:
pppd noauth nodetach 10.0.2.15:10.0.2.44 pty 'udpenc key_file - - - c 208.77.188.166 8888' unit 1
route add default ppp1

If this don't work, please report.