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VPN:

Virtual Private Network

Presented By:

Gregg Dowdy

Liz FarrickerWhitney Mayoras

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Outline

Introductions

What is it?

Overview

Security/Tunneling

Advantages and Disadvantages Demonstration

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Introductions

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

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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)

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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 providers network to protect thetraffic.

MPLS and L2F

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VPN: Security

Encryption

IPSec

Authentication

User/System and Data

AAA Servers

(Authentication, Authorization, and Accounting)

Firewalls

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VPN: Tunneling

Requires 3 protocols

Carrier

Default network protocol

Passenger

Original data

Encapsulation GRE, IPSec, L2F, PPTP, L2TP

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VPN: Encapsulation

Figure 1

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VPN: Tunneling (cont.)

Two Basic types of tunneling

Site-to-Site

Typically uses GRE

Remote-Access

Typically uses PPP

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VPN: Advantages

Cost Effective

Greater scalability

Easy to add/remove users

Mobility

Security

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VPN: Disadvantages

Understanding of security issues

Unpredictable Internet traffic

Difficult to accommodate products

from different vendors

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VPN Demonstration

Click on Start

select Network

Connections

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VPN Demonstration

In Network

Connections on

the left hand side

there is a link to

Create NewConnection

click on this and a

wizard will pop up

assisting the user

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VPN Demonstration

Select

Connect to the

Network at my

Workplace

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VPN Demonstration

Select Virtual

Private

Network

Connection

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VPN Demonstration

Make a name for

this connection that

you are

establishing to

distinguish thisconnection from

other VPN

connections that

might already be

established

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VPN Demonstration

For this demonstration I

am trying to connect to

my wireless router off

campus therefore the IP

address that I insert isthe 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

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VPN Demonstration

Personal

preference as to

whether or not you

want other users to

be able to use this

VPN connection

on this computer

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VPN Demonstration

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VPN Demonstration

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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

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VPN Demonstration

In Start Run insert the IPaddress 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 canconnect to this specific

computer

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VPN Demonstration

These are only the files that are shared on this computer

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How to Connect to OSU:

How to connect to OSU:

Dave Sullivan made a helpful Tutorial

First on the Engineering Website you have to downloadthe Cisco VPN Client

One must acquire authorization information prior tousing the VPN service

Once registration is complete you download theappropriate client depending on your operating system;and follow the steps to complete the connection

http://faculty.bus.oregonstate.edu/sullivan/it-support/remote-access.htmhttp://oregonstate.edu/net/security/vpn/http://oregonstate.edu/net/security/vpn/vpn_secure/reg-step1.phphttp://oregonstate.edu/net/security/vpn/vpn_secure/reg-step1.phphttp://oregonstate.edu/net/security/vpn/http://faculty.bus.oregonstate.edu/sullivan/it-support/remote-access.htm

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References

[Figure 1]

Mitchell, Bradley. "VPN Tutorial." About.Com. 2007. 8 Mar.

2007.

Tyson, Jeff. "How Virtual Private Networks Work." How StuffWorks. 6 Mar. 2007.

"Virtual Private Network." Wikipedia: the Free Encyclopedia. 6Mar. 2007. 9 Mar. 2007 .