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VPN: Virtual Private Network. Presented By: Gregg Dowdy Liz Farricker Whitney Mayoras. Outline. Introductions What is it? Overview Security/Tunneling Advantages and Disadvantages Demonstration. Introductions. Gregg BSG – Student Developer

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vpn virtual private network

VPN: Virtual Private Network

Presented By:

Gregg Dowdy

Liz Farricker

Whitney Mayoras

  • Introductions
  • What is it?
  • Overview
  • Security/Tunneling
  • Advantages and Disadvantages
  • Demonstration
  • Gregg
    • BSG – Student Developer
    • Unified Western Grocers – Retail Technology Specialist
  • Liz
    • BSG – Business Analyst
    • ResNet – Network Technician
    • COB CRC: Tier 2/3 Support Technician
  • Whitney
    • BSG – Student Tester/Analyst
vpn what is it
VPN: What is it?
  • Virtual Private Network
  • Remote network communication through Internet
  • Used by companies/organizations who want to communicate confidentially
  • Two parts:
    • Protected or “inside” network
    • “Outside” network or segment (less trustworthy)
vpn types
VPN: Types
  • Secure VPNs use cryptographic tunneling protocols.
    • IPsec, SSL/TLS, OpenVPN, PPTP, L2TP, L2TPv3, VPN-Q and MPVPN
  • Trusted VPNs rely on the security of a single provider’s network to protect the traffic.
    • MPLS and L2F
vpn security
VPN: Security
  • Encryption
  • IPSec
  • Authentication
    • User/System and Data
    • AAA Servers

(Authentication, Authorization, and Accounting)

  • Firewalls
vpn tunneling
VPN: Tunneling
  • Requires 3 protocols
    • Carrier
      • Default network protocol
    • Passenger
      • Original data
    • Encapsulation
      • GRE, IPSec, L2F, PPTP, L2TP
vpn tunneling cont
VPN: Tunneling (cont.)
  • Two Basic types of tunneling
    • Site-to-Site
      • Typically uses GRE
    • Remote-Access
      • Typically uses PPP
vpn advantages
VPN: Advantages
  • Cost Effective
  • Greater scalability
  • Easy to add/remove users
  • Mobility
  • Security
vpn disadvantages
VPN: Disadvantages
  • Understanding of security issues
  • Unpredictable Internet traffic
  • Difficult to accommodate products from different vendors
vpn demonstration
VPN Demonstration

Click on Start – select Network Connections

vpn demonstration13
VPN Demonstration

In Network Connections on the left hand side there is a link to “Create New Connection” – click on this and a wizard will pop up assisting the user

vpn demonstration14
VPN Demonstration

Select “Connect to the Network at my Workplace”

vpn demonstration15
VPN Demonstration

Select “Virtual Private Network Connection”

vpn demonstration16
VPN Demonstration

Make a name for this connection that you are establishing – to distinguish this connection from other VPN connections that might already be established

vpn demonstration17
VPN Demonstration

For this demonstration I am trying to connect to my wireless router off campus therefore the IP address that I insert is the IP address for my router which I can find out by running an ipconfig and it is the IP address for your default gateway

NOTE: Not all routers will allow users to VPN into it

vpn demonstration18
VPN Demonstration

Personal preference as to whether or not you want other users to be able to use this VPN connection on this computer

vpn demonstration21
VPN Demonstration

This is a profile (username and password) that has already been created on your router – which can be created by typing in the IP address of your router in a web browser

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VPN Demonstration

In Start – Run insert the IP address of the computer that you want to access that is connected to the router

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VPN Demonstration

Using the same username and password already established for the router you can connect to this specific computer

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VPN Demonstration

These are only the files that are “shared” on this computer

how to connect to osu
How to Connect to OSU:
  • How to connect to OSU:
  • Dave Sullivan made a helpful Tutorial
  • First on the Engineering Website you have to download the Cisco VPN Client
  • One must acquire authorization information prior to using the VPN service
  • Once registration is complete you download the appropriate client depending on your operating system; and follow the steps to complete the connection
  • [Figure 1] <www.csun.edu/~vcact00f/311/termProjects/700class/VPN.ppt>
  • Mitchell, Bradley. "VPN Tutorial." About.Com. 2007. 8 Mar. 2007 <http://compnetworking.about.com/od/vpn/l/aa010701a.htm>.
  • Tyson, Jeff. "How Virtual Private Networks Work." How Stuff Works. 6 Mar. 2007 <http://computer.howstuffworks.com/vpn.htm>.
  • "Virtual Private Network." Wikipedia: the Free Encyclopedia. 6 Mar. 2007. 9 Mar. 2007 <http://en.wikipedia.org/wiki/Vpn>.