scholarly journals A Survey on the Implementation and Management of Secure Virtual Private Networks (VPNs) and Virtual LANs (VLANs) in Static and Mobile Scenarios

Telecom ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 430-445
Author(s):  
Antonio Francesco Gentile ◽  
Peppino Fazio ◽  
Giuseppe Miceli
Keyword(s):  
Management Practices ◽  
Logical Consequence ◽  
Local Area ◽  
Virtual Private Network ◽  
Virtual Private Networks ◽  
Content Delivery Network ◽  
Security Issues ◽  
Effective Network ◽  
Private Network ◽  
The Impact

Nowadays, the demand for connection between the remote offices of a company, or between research locations, and constantly increasing work mobility (partly due to the current pandemic emergency) have grown hand in hand with the quality and speed of broadband connections. The logical consequence of this scenario is the increasingly widespread use of Virtual Private Network (VPN) connections. They allow one to securely connect the two ends of a connection via a dedicated network, typically using the Internet and reducing the costs of Content Delivery Network (CDN) lines (dedicated connections). At the same time, Virtual Local Area Networks (VLANs) are able to decrease the impact of some scalability issues of large networks. Given the background above, this paper is focused on overviewing and surveying the main progresses related to VPNs and VLANs in wireless networks, by collecting the most important contributions in this area and describing how they can be implemented. We state that security issues in VLANs can be effectively mitigated through the combination of good network-management practices, effective network design and the application of advanced security products. However, obviously, the implementation of VPNs and VLANs poses specific issues regarding information and network security; thus some good solutions are also surveyed.

Cisco Secured Virtual Private Networks: A Review

2018 ◽  
Vol 7 (2) ◽  
pp. 30-33
Author(s):  
Yusera Farooq Khan
Keyword(s):  
Review Paper ◽  
Virtual Private Network ◽  
Virtual Private Networks ◽  
Public Network ◽  
The Public ◽  
Internal Network ◽  
Private Network ◽  
A Site ◽  
Destination Address

Now-a-days the significance of security has been greater than before because of the fact that data has been accessed and transferred through public network. The data which has been transferred could be sniffed which may be a loss for us. When data is transferred in to public network we need confidentiality, integration and authentication. In this review paper we will discuss all these factors that keep our data safe enough. In order to provide this factor a site-to-site virtual private network has been designed which provide more security to data and made the public network into private network. The virtual private network hides the source and destination address as well as it also hides the internal network so that our network would be safe enough.

Multi-attribute Services Brokering in Agent-based Virtual Private Networks

2005 ◽  
Vol 1 (3) ◽  
pp. 137-143
Author(s):  
Nikos Manouselis ◽  
Andreas M. Maras
Keyword(s):  
Virtual Private Network ◽  
User Preferences ◽  
Multi Agent System ◽  
Virtual Private Networks ◽  
End User ◽  
Agent Based ◽  
Multi Agent ◽  
Preference Models ◽  
Private Network ◽  
Decision Making Model

This paper presents the development of an agent-based Virtual Private Network (VPN) system that supports multimedia service brokering. The VPN agents employ multi-attribute preference models in order to represent the end-user preferences, and a multi-criteria decision making model to evaluate available services from network providers. A prototype multi-agent system demonstrating the proposed approach has also been implemented.

scholarly journals Network Security Issues and Effective Protection Against Network Attacks

2021 ◽  
Vol 7 (9) ◽  
pp. 479-485
Author(s):  
J. Arzieva ◽  
N. Nukusbaev
Keyword(s):  
Network Security ◽  
Virtual Private Network ◽  
Effective Protection ◽  
Network Attacks ◽  
Security Issues ◽  
Internal Network ◽  
Private Network

This article defines a VPN as a virtual private network. This technology is based on the formation of an internal network within another network to exchange all information between users in order to provide reliable protection.

scholarly journals VPN solutions and network monitoring to support virtual teams work in virtual enterprises

2011 ◽  
Vol 8 (1) ◽  
pp. 1-26 ◽  
Author(s):  
Marius Roşu ◽  
George Drăgoi
Keyword(s):  
Virtual Teams ◽  
Network Architecture ◽  
Local Area Network ◽  
Virtual Enterprise ◽  
Local Area ◽  
Virtual Private Network ◽  
Area Network ◽  
Virtual Enterprises ◽  
Geographically Dispersed ◽  
Private Network

In order to be competitive enterprises continuously implement ICT strategies & architectures to improve manufacture, research, products quality, sales, services and costs control. All large enterprises have a local area network, a virtual private network, an Intranet and Internet, servers and workstations for operations, administration and management working together for the same objective: profits. The virtual enterprise and the virtual team?s concepts are discussed in this article. This work analyzes the network architecture for geographically dispersed enterprises (seen as virtual enterprises) as support for virtual project development by virtual teams work. In addition, the paper presents an enterprise networks monitoring solution using open source software (OSS).

Traffic Engineering for Provisioning Hose Model VPNs with Delay Requirements

2011 ◽  
Vol 383-390 ◽  
pp. 4241-4245
Author(s):  
Yu Liang Liu
Keyword(s):  
Service Provider ◽  
Traffic Engineering ◽  
Virtual Private Network ◽  
Network Service ◽  
Security Issues ◽  
Network Service Provider ◽  
Encryption Decryption ◽  
Bandwidth Guarantees ◽  
Private Network ◽  
Hose Model

Virtual Private Network (VPN) is a logic network established on top of a public packet switched network. Previous research works on VPN mainly focused on security issues, such as tunneling, encryption/decryption and authentication. To guarantee that customers’ QoS requirements specified by customers can be met, the network service provider needs to reserve enough network resources on the network, and allocate/manage them in an optimal way. Traffic engineering algorithms can be used by the network service provider to establish multiple VPNs in an optimal way, while meeting customers’ QoS requirements. Previous works on VPN traffic engineering focus on meeting bandwidth guarantees, however, for some network applications, such as VOIP and IPTV, meeting delay requirement is one of another vital issue. To our knowledge until now, issues about traffic engineering for establishing VPNs meeting both bandwidth and delay requirements have not been investigated. In this paper, we proposed a novel VPN traffic engineering algorithm for establishing hose model VPNs with delay requirements. According to experimental simulations conducted our algorithm achieved better performance compared to previous ones.

Multiprotocol Label Switching Virtual Private Networks

2011 ◽  
pp. 440-456
Author(s):  
Jan Schankin ◽  
Eduardo Correia
Keyword(s):  
Service Provider ◽  
Large Scale ◽  
Internet Protocol ◽  
Virtual Private Network ◽  
Ip Networks ◽  
Multiprotocol Label Switching ◽  
Virtual Private Networks ◽  
Label Switching ◽  
Physical Infrastructure ◽  
Private Network

Multiprotocol Label Switching (MPLS) was originally designed with the intention of improving the speed with which routers could forward packets in Internet Protocol (IP) networks. Due to significant improvements in packet forwarding, this is no longer an advantage, but the technology has found large-scale industry-wide acceptance because of its greatly widened scope and application. Multiple extensions and enhancements to the protocol make it capable of solving an array of current service provider and customer network requirements for a converged network in an IP dominated world. The chapter considers the use of MPLS for the provisioning of a virtual private network over a shared physical infrastructure, and discusses the logic and functionality of key protocols associated with MPLS. It then goes on to explore the problems, protocols, and possibilities of these technologies in current environments.

Kajian virtual private network (vpn) sebagai sistem pengamanan data pada jaringan komputer (studi kasus jaringan komputer unikom)

2015 ◽  
Vol 12 (1) ◽  
Author(s):  
Irawan Afrianto ◽  
Eko Budi Setiawan
Keyword(s):  
Metropolitan Area ◽  
Local Area Network ◽  
Local Area ◽  
Virtual Private Network ◽  
Wide Area ◽  
Computer Networking ◽  
Area Network ◽  
Wide Area Network ◽  
Metropolitan Area Network ◽  
Private Network

Jaringan komputer dapat dikatakan sebagai sebuah sistem yang terdiri dari berbagai komputer beserta resource-nya yang didesain agar dapat menggunakan sumber daya yang ada, sehingga dapat mengakses informasi yang diperlukan. Informasi tersebut dapat diakses melalui komputer yang lain dengan konsep computer networking, baik itu Local Area Network, Metropolitan Area Network, Wide Area Network ataupun juga internet. Untuk mengamankan suatu koneksi pada jaringan dapat menggunakan jaringan yang bersifat virtual yang dikenal dengan istilah Virtual Private Network (VPN).Virtual Private Network (VPN) adalah sebuah teknologi komunikasi yang memungkinkan untuk dapat terkoneksi ke jaringan publik dan menggunakannya untuk bergabung dengan jaringan lokal. Dengan cara tersebut maka akan didapatkan hak dan pengaturan yang sama seperti halnya berada didalam kantor atau network itu sendiri, walaupun sebenarnya menggunakan jaringan milik publik.UNIKOM sebagai salah satu perguruan tinggi yang dalam melakukan kegiatan operasionalnya terdiri dari beberapa stakeholder yang saling terhubung dalam jaringan komputer, perlu menerapkan konsep VPN untuk mengamankan informasi yang dimiliki pada suatu jaringan, ataupun untuk memudahkan dalam mengakses jaringan lokal yang ada di UNIKOM walaupun dalam mengaksesnya menggunakan jaringan yang bersifat public (internet).Hasil dari penelitian ini adalah berupa suatu rekomendasi dasar yang dapat digunakan oleh UNIKOM untuk menerapkan konsep Virtual Private Network (VPN) dalam pengembangan jaringan komputer yang dimiliki sehingga dalam pengaksesan informasi dapat berlangsung lebih aman dan efektif.

scholarly journals Charging wireless sensor network security technology based on encryption algorithms and dynamic model

2020 ◽  
Vol 16 (3) ◽  
pp. 155014772090199
Author(s):  
Yuanming Li ◽  
Wei Guo ◽  
Xuejun Meng ◽  
Wen Xia
Keyword(s):  
Wireless Networks ◽  
Network Security ◽  
Wireless Network ◽  
Virtual Private Network ◽  
Media Access Control ◽  
Security Model ◽  
Security Technology ◽  
Security Issues ◽  
Remote Authentication ◽  
Private Network

With the popularization of the Internet, the related information technology is developing faster and faster, and the scale and complexity of the network are also increasing. Wireless networks cover all aspects of life, along with it, network security issues have gradually emerged. In recent years, network security vulnerabilities have been exposed continuously, from WiFi to Bluetooth, people gradually realize the security of wireless networks. The purpose of this article is to solve the existing security problems and study the operation process of RC4 and Advanced Encryption Standard algorithms, and the improvement scheme is put forward. This article is based on the inherent media access control address filtering technology of wireless network card; a dynamic security model for wireless networks is proposed and constructed. Devices accessing the network use 802.1x authentication method and distribute and set security status values for each device, the authentication server uses Remote Authentication Dial in User Service. This article uses the method of virtual private network encryption network to provide an encryption layer for communication between devices and wireless networks, thus, the data in network transmission can be encrypted and protected. In this article, the structure and strategy of Remote Authentication Dial in User Service are changed, in order to ensure the high security of wireless network equipment in the connection process. In the testing phase of this article, we have tested the model in detail several times. Tests are divided into middleman and session interception tests. A large number of test results show that this model can improve the security of wireless network and has good performance.

scholarly journals Detection of Virtual Private Network Traffic Using Machine Learning

2020 ◽  
Vol 9 (2) ◽  
pp. 60-80
Author(s):  
Shane Miller ◽  
Kevin Curran ◽  
Tom Lunney
Keyword(s):  
Neural Network ◽  
Network Traffic ◽  
Computational Models ◽  
Transmission Control Protocol ◽  
Virtual Private Network ◽  
Virtual Private Networks ◽  
The Neural Network ◽  
User Access ◽  
Private Network ◽  
Work Done

The detection of unauthorized users can be problematic for techniques that are available at present if the nefarious actors are using identity hiding tools such as anonymising proxies or virtual private networks (VPNs). This work presents computational models to address the limitations currently experienced in detecting VPN traffic. A model to detect usage of VPNs was developed using a multi-layered perceptron neural network that was trained using flow statistics data found in the transmission control protocol (TCP) header of captured network packets. Validation testing showed that the presented models are capable of classifying network traffic in a binary manner as direct (originating directly from a user's own device) or indirect (makes use of identity and location hiding features of VPNs) with high degrees of accuracy. The experiments conducted to classify OpenVPN usage found that the neural network was able to correctly identify the VPN traffic with an overall accuracy of 93.71%. The further work done to classify Stunnel OpenVPN usage found that the Neural Network was able to correctly identify VPN traffic with an overall accuracy of 97.82% accuracy when using 10-fold cross validation. This final experiment also provided an observation of 3 different validation techniques and the different accuracy results obtained. These results demonstrate a significant advancement in the detection of unauthorised user access with evidence showing that there could be further advances for research in this field particularly in the application of business security where the detection of VPN usage is important to an organization.

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