From Hentschel
'''Important:''' Both sides need to run as root to create the tunnel device. Thus, 'ssh -w 0:0 root@www.hentschel.net' must run as root on the client side too.
<quotepre>
+---------------+ OpenSSH 4.3 +---------------+
| hentschel | tun0 -- Tunnel Interface -- tun0 | zm.home |
+---------------+ +---------------+
</quotepre> To add route from hentschel to Network B, <pre>ip route add 192.168.1.0/24 dev tun0</pre> on 'hentschel'