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Many reports have been written about the techniques behind Virtual Private Networks (VPN) and Multi Protocol Label Switching (MPLS). They usually deal with the low level design of the software implementing a specific technique. The initial products are usually not mature enough to run in a large network or have to be adjusted in some way to fit. This report investigates the different ways of implementing strict layer 2 Virtual Private Networks in an existing nation-wide Gigabit Ethernet. The infrastructure in use, as well as the hardware, has to be used without major changes. Since 1998/1999, when MPLS first started in the laboratories, development has continued. Today it is possible to introduce MPLS or tunneled national virtual local area network into an existing network. This requires high speed, fault tolerant, and stable hardware and software. Going beyond the separation of traffic at layer 3 using Virtual Private Networks, i.e., IPSec, we can tunnel layer 2 traffic through a network. Although the first layer 3 VPN products are already in use, layer 2 VPNs still need to be evaluated and brought into regular use. There are currently two ways of tunneling VLANs in a core network: tunneled VLANs (or as Extreme Networks calls them, VMANs) and MPLS. This project showed that it is possible to start with a VLAN-only solution, and then upgrade to MPLS to solve scalability issues. The VMAN solution can not be used at Arrowhead, since there are too many disadvantages in the way Extreme Networks has implemented it. However, a mix of tunneling VMAN in a VLAN core is possible, and enables customer tagging of VLANs in a Layer 2 VPN. Furthermore, the testing of EAPS and per-VLAN Spanning Tree Protocol turned out well, and showed that EAPS should not be used when there is more than one loop.

The widespread availability of public Wi-Fi has significantly impacted how young adults in Sweden access the Internet for various purposes, including social interactions, academic activities, and entertainment. However, this convenience comes with substantial cybersecurity risks. This study aims to explore and understand the awareness level among young adults regarding cybersecurity threats when utilizing public Wi-Fi and to delve into the measures and strategies employed by young adults to safeguard themselves from these identified threats. The root problem addressed in this study is the potential gap in cybersecurity awareness and protective behaviors among young adults who frequently use public Wi-Fi. Understanding this gap is crucial for developing effective educational initiatives and security practices that can mitigate the risks involved. To investigate this issue, a qualitative research method was employed, involving semi-structured interviews with ten participants, balanced in gender. The interviews aimed to gather in-depth insights into the participants' motivations for using public Wi-Fi, their awareness of cybersecurity risks, and the measures they take to protect themselves. Utilizing semi-structured interviews with ten participants, the study reveals a diverse range of awareness and behaviors. While some participants demonstrate a strong understanding of cyber threats and employ proactive measures such as using VPNs and antivirus software, others show only a cursory awareness and engage in risky behaviors due to a lack of knowledge or disregard for potential threats. This variation highlights a disparity in how young adults approach cybersecurity when using public Wi-Fi. The study underscores a need for targeted educational initiatives to enhance protective practices among this demographic, which could inform future cybersecurity policies and educational programs. By focusing on increasing cybersecurity awareness and promoting better security habits, the risks associated with public Wi-Fi usage can be better managed, thereby helping to protect the digital lives of young individuals in Sweden.

Informationen des Universitätsrechenzentrums

Informationen des Universitätsrechenzentrums:Jahresrückblick 2003 Aktuelle HBFG-Projekte Sicheres Programmieren mit PHP Passwort vergessen - was nun? VPN-Dienst des URZ Spam-Schutz 'Textanalyse' erweitert