Presented by Or Sereiparinha Phan Chhunlong Student from Panhasastra University of Cambodia (PUC)

1. Presented by
Or Sereiparinha
Phan Chhunlong

2. VPN

3. Introduction
What is VPN?
∞ Virtual Private Network is a type of private network that uses
public telecommunication, such as the Internet, instead of leased
lines to communicate.

4. VPN & Non-VPN
Virtual Private Network
Non - Private Network
∞ Advantages of private and
global internet
∞ Privatization is done by leased
line
∞ Cost inefficient
∞ Completely isolated network
from world
∞ Unsecured connection
∞ Costlier

5. How VPN Works ?

6. Tunneling
What is Tunnel?
∞
∞
∞
VPN technology
Maintaining a logical network connection
The process of placing an entire packet

7. VPN Tunneling Protocol
∞ Point-to-Point Tunneling Protocol (PPTP)
∞
∞
Widely support among Window users
PPTP is faster
∞ Layer Two Tunneling Protocol (L2TP)
∞
∞
Data integrity
Developed by Microsoft and Cisco
∞ Internet Protocol Security (IPSec)
∞
∞
Multiple related protocols
Complete VPN protocol solution

8. L2TP – PPTP - IPSec

9. Types of VPNs
∞ Remote access VPN
∞
∞
To establish secure connection
Client software
∞ Intranet VPN
∞
∞
Link corporate headquarters remote offices
Reduces WAN bandwidth & Connect new sites easily
∞ Extranet VPN
∞ Link customer, suppliers, partner of interest to corporate intranet
Over a shared using dedicated connection

10. How it work ?

11. Firewall
∞ Firewall ?
∞
∞
Provides network security
Prevents attacks and secures your data
∞ Two approaches to using firewall with VPN server
∞
∞
VPN server in front of the firewall
VPN server behind the firewall

12. Server in front
& behind firewall

13. Server in front
& behind firewall

14. mVPN
∞
What is mVPN?
∞ Mobile device with access to network resources and software
application on their home network

15. Advantages & Disadvantages
Advantages
Disadvantages
∞
∞
∞
∞
∞ Security issues
∞ Solution relies on an ISP
∞ Product & Solution from different
vendor, compatible due to issues with
VPN technology standard
Security
Reliability
Cost Saving
Scalability

16. 5mn Before Demo ?