1. Virtual Private Network (VPN) Jeffery Jones James Santana BA479 March 15,2006

2. Introduction WWWWhat is a VPN HHHHow a VPN works HHHHardware for Establishing a VPN SSSSetting up a VPN TTTTypes of VPN WWWWhy have a VPN connection SSSSecuring the client QQQQuestions

3. What is a VPN  Private network  Created to address two problems 1. High Cost 2. Securely connecting

4. How a VPN Works VVVVPN uses a special protocol TTTTunneling EEEExchanges Data DDDData safely wrapped and unwrapped TTTTwo types of encryption systems 1. S ymmetric key encryption 2. P ublic key encryption These two types of encryption will be discussed more in depth in BA483

5. Hardware for VPN  Desktop software client for each remote user  Dedicated VPN server for dial-up services  NAS (network access server)  VPN network policy-management center

6. Setting up a VPN Some of the factors that should be considered in designing a VPN are:  Security  Reliability  Scalability  Network management  Policy management

7. Setting up a VPN (continued) You can set up a VPN two ways: 1. Between networks and firewalls or encrypting routers to do the encrypting and decrypting of the traffic. 2. Have a firewall, encrypting router, or VPN server at the destination end and special VPN client software on the desktop or laptop computers.

8. Reasons to have a VPN  Its fast  Its easy to take with you wherever you go  Its able to maintain security and keep you hidden from others (mainly hackers)  Its dependable

9. Types of VPN There are three types of VPN RRRRemote-access SSSSite to site intranet SSSSite to site extranet

10. Securing the Client  Breaking VPN Security  Laptop Owners Precautions:  Personal firewall  Enable BIOS password OSU VPN Setup OSU VPN Setup

11. Questions ? References:http://computer.howstuffworks.com/vpn.htmhttp://www.vpnc.org/vpn-technologies.htmlhttp://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/vpn.htm http://www.microsoft.com/technet/prodtechnol/windows2000serv/pl an/vpnoverview.mspx http://en.wikipedia.org/wiki/Virtual_private_network Too Bad…. Times Up!!!!