tun is a simple tunneling application. It uses the /dev/net/tun
device (virtual) which is used to separate the "real" network
traffic from the tunnel-traffic. This means, the /dev/net/tun
interface makes possible to route data thru the tunnel with the
common linux kernel routing. We're also able to define rules for
the routing (with iptables), so the routing can be made
application-specific.
This means for example, that just the smtp-traffic will be sent
thru the tunnel, so a smtp-server of an extern network can be used
for your purposes.
The whole project is developped and tested on SuSE Linux 8.2
with the standard kernel 2.4.20-4GB.
-> please be shure that your distribution contains a valid
if_tun.h file! (refer to documentation INSTALL, point 3. Start)
Please visit our project page on sourceforge.net
[http://sourceforge.net/projects/gophers-den/]
