DynVPN allows you to create Virtual Private Network which secures the traffic between networks.
DynVPN enables you to set up a Virtual Private Network between many networks that only have dynamic IP addresses. The Virtual Private Network secures the traffic between those networks and every computer in it (also those behind the gateways) gets a static IP address. We use it in our Itzgrund.net, to connect the networks that are too far away from the main network in Lahm via the Intenet.
Requirements:
· Hardware:
· DynVPN is actually two Python scripts. A CGI script, "nexus", to run at a server with static IP (or at least a dyndns name), and one, "packthread", to run at the gateways of each connected network. So you can simply use you webserver as the DynVPN server.
· Software:
· Python (the interpreter for the scripts)
· IPsec in the kernel of the gateways (see FreeS/WAN for a patch)
· FreeS/WAN on the gateways
Starting The Client
Just run "packthread.py " when you go online (via /etc/ppp/ip-up.d) or when your IP address changes. After some seconds, your routing tables should contain routes to the other networks.
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