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NeSSi2 2.1.2 has been released

Available for download now!


NeSSi2 2.1.1 has been released

Available for download now!


Error with Win32 UI zip file

The zip-file for the Win32 version was damaged, after decompressing it showed duplicate files. We...


See NeSSi2 in action: Lange Nachte der Wissenschaften 2012 (Science Night 2012)

June 2, from 17-01


Network Security Simulator


Developed by

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Logo Telekom Laboratories

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If you questions, comments or want to contribute to NeSSi². please write us an e-mail to

Current team members

Sahin Albayrak

Seyit Ahmet Camtepe

Karsten Bsufka

Rainer Bye

Joel Chinnow

Dennis Grunewald

Stephan Schmidt

Thomas Hauschild

Jakob Strafer

Former team members

Olaf Kroll-Peters

Markus Lagermann

Sebastian Lienkewicz

Katja Luther

Arik Messerman

Danie Mouapi

Thorsten Rimkus