VPN Virtual Private Network

1. Virtual Private Network
Rama Krishna N

2. Contents
What is VPN?
VPN Components
Work Flow
VPN Terminology
Popular VPNs
Pros and Cons
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3. • 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 ?______________________________

4. VPN Components
VPN Server
VPN Client
VPN Software
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5. Server
Client
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Server
Client

6. Work Flow
Authentication
Tunneling
Ecncryption
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7. Server Client
Network

9. 192.168.X.Y172.164.A.B
172.164.A.B 172.164.C.D
Before VPN
After VPN
Server Client

10. Data TransferServer Client
Upload Download
______________________________Speed Matters …
Requires high speed internet to establish VPN Connection

11. 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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12. 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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13. VPN Terminology______________________________

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