Υλοποίηση, απασφαλμάτωση και σύγκριση τεχνολογιών Ιδιωτικών Εικονικών Δικτύων
Implementation, debugging and comparison of Virtual Private Network (VPN) technologies
The purpose of this master thesis is to make a thorough analysis of existing technologies for the implementation of Virtual Private Networks (VPN). We will mention what is the VPN technology, and the basic implementations of VPN. Also, there will be a reference to the basic types of VPN, and their unique characteristics. Concluding the presentation, we will deal with the two prevalent types of VPN, IPsec VPN and SSL VPN, and with the use ofGNS3 software we will try to create a topology and implement these types of VPN. The implementation, in each case, will be done by inserting commands through Command Line Interface (CLI), as well as using wizards in Graphical User Interface (GUI) with the help of Cisco Configuration Professional (CCP) and Cisco Adaptive Security Device Manager (Cisco ASDM). After the implementation is done, debugging is our main concern. We will explain the commands we need to confirm that the configuration is valid, and if something does not work properly we will try to identify and correct these errors.