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Mangrovia is a tool for automatic complex multilayer topology generation in a compatible format with Network Simulator 2 (ns-2). Based on specs (in xml format), software creates an otcl script. Users can set Bandwidths, Distances, Linking Policies.
LapNet is a nice Qt-Gui wich helps you to generate a Script, wich automaticaly detects wich network and/or wlan you want to use at moment.
So just start your laptop whereever you are and it gets connected to the right network!
Networkdesigner is a tiny gui to create a visual network-topology, to define services an release them to any networkdevice. After that a firewall script on base of ip-tales base linux kernel can be created.
StatScript is a traffic summary script for linux. It use /proc/net/dev to obtain the traffic per session and store it to the file. Then it summs the old and the current traffic. This scripts are useful for the traffic-controlled internet connection.