Virtual Private Network: Implementation, Security, and Threats

This presentation provides an overview of Virtual Private Networks (VPNs), emphasizing their role in establishing secure connections for users, particularly within local area networks. It details the IP infrastructure requirements, including LAN connections, BYOD policies, and the use of servers like mail, web, and DNS. A network diagram illustrates a setup with four routers connected via tunneling over an ISP internet, ensuring secure data packet transmission between the main branch and headquarters. Security mechanisms such as IPSec and SSL are discussed to safeguard user information from network vulnerabilities, alongside potential threats like denial of service and intrusion. The presentation also covers encryption techniques like AES and MD5 used to maintain data security. It concludes by highlighting the successful implementation of VPN for Avita’s corporate network and referencing key sources for further information, available on Desklib.

Virtual Private Network

 Introduction
 IP Infrastructure Requirements
 Network Diagram
 Security Mechanism
 Threats to VPN
 Encryption Techniques used
 Conclusion
 References
Table of Content

 Virtual private network provides secure
connection to the users
 There are different types of VPN that are
connected with a local area network
 These networks secure the network services
that are accessed online
 Internet services are provided to users by
using Internet Service Provider (ISP)
Introduction

 Local area network connection
 BYOD policy is needed for the employees
 Servers like mail server, web server, DNS
server have to be used
 Security mechanisms should be used to
protect the VPN
 Network resources of headquarters should
be accessed by branch office employees
also
IP Infrastructure
requirements

Network Diagram

 Four routers which are connected via
tunnelling over ISP internet are located on
the different places.
 Routers connected are of series 3725.
 Main branch and Headquarters are able to
access the data packet which are
transmitted through the network.
 Home users and mobile users are not able
to access the data packet from others which
are transmitted on this network.
Network Diagram

 These are used to ensure that the
information of users will be protected.
 These safeguard information from security
vulnerabilities of a network
 IPSec and SSL security mechanisms are
used for the company
 It will determine security standard for the
network users.
 This provide better accessibility to the
network users
Security Mechanisms

 VPN is responsible to provide better internet
connectivity and flexibility to all users which
are far distant form each other.
 Various threats which can be generated
through VPN are:
1. Denial of Services
2. Intrusion
Threats to Virtual Private
Network

 Various encryption techniques are used in
this network to maintain the security
feature in transmitting the confidential data
through this network.
 Encryption techniques used are
1. AES(Advanced Encryption Standard)
2. MD5(Message Digest Hashing)
Encryption Techniques used

 This presentation had successfully
discussed all the implementation of security
protocols.
 In this network VPN is successfully
implemented for Avita’s Corporate network.
 Security policy like IP sec and SSL security
are discussed.
 Various encryption techniques which have
been used in this network are briefly
discussed in this report.
Conclusion

[1] Microsoft, "Network Security Components", Microsoft, 2017. [Online].
Available:
https://msdn.microsoft.com/en-us/library/ms913708(v=winembedded.5).aspx.
[Accessed: 01- Feb- 2018].
[2] Ward, "SSL Certificate – Advantages and Disadvantages", Slideshare, 2014.
[Online]. Available: https://www.slideshare.net/JohnWard23/ssl-certificate-
advantages-and-disadvantages. [Accessed: 01- Feb- 2018].
[3]M. Pinola, "What Exactly is a VPN & Why Use One?", Lifewire, 2017. [Online].
Available: https://www.lifewire.com/what-is-a-vpn-2377977. [Accessed: 01-
Feb- 2018].
[4]D. Crawford, "VPNs for Beginners – What You Need to Know
- BestVPN.com", BestVPN.com, 2016. [Online]. Available:
https://www.bestvpn.com/vpns-beginners-need-know/. [Accessed: 01- Feb-
2018].
[5]M. Rouse, "What is virtual private network (VPN)? - Definition from
WhatIs.com", SearchNetworking, 2017. [Online]. Available:
http://searchnetworking.techtarget.com/definition/virtual-private-network.
[Accessed: 01- Feb- 2018].
References