VPN Virtual Private Network

Virtual Private Network

Rama Krishna N

Contents

What is VPN?VPN ComponentsWork FlowVPN TerminologyPopular VPNsPros and Cons

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• VPN : Virtual Private Network • Internet allows computers/networks at

distant locations to connect eachother

• VPN is Client – Server Technology

over Internet Securely

What is VPN ?______________________________

VPN Components

VPN Server

VPN Client

VPN Software

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Server

Client_______________________________________________

Server

Client

Work Flow

Authentication

Tunneling

Ecncryption

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Server Client

Network

192.168.X.Y172.164.A.B

172.164.A.B 172.164.C.D

Before VPN

After VPN

Server Client

Data TransferServer Client

Upload Download

______________________________Speed Matters …

Requires high speed internet to establish VPN Connection

Popular VPNs• Microsoft VPN• Pure VPN• Cisco VPN• Secure VPN• Open VPN and many more...

VPN Server and Client should be compatible

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Pros and Cons

• Safe and secure but deploying and configuring is difficult

• VPN is cost effective but internet of high speeds is required

• Easier to expand the network but VPN used at server and client ends must be compatible

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VPN Terminology______________________________

• https://www.youtube.com/watch?v=q4P4BjjXghQ • https://www.youtube.com/watch?v=4BfL0UHrzDY • www.cisco.com • http://www.bestanonymousvpn.com/

References______________________________

Any Queries..?

Thank you