VIRTUAL PRIVATE NETWORK

A Virtual Private Network (VPN) connects the components and resources of one network with another network in a secure way. (A network can consist of even only one computer.)   VPNs accomplish this by allowing the user to tunnel through the Internet, or another network in a manner that lets the tunnel participants enjoy the same security and features formerly available only in private networks.

VPNs allow remote users to connect in a secure fashion to a server located in a Local Area Network (LAN) using the routing infrastructure provided by a public network (such as the Internet). From the user's perspective, the VPN is a point-to-point connection between the user's computer and a host server. The nature of the intermediate inter-network is irrelevant to the user because it appears as if the data is being sent over a dedicated private link. The secure connection across the inter-network appears to the user as a private network communication -- hence the name Virtual Private Network.

HOW TO SETUP AS A VIRTUAL PRIVATE NETWORK CLIENT

PRE-REQUISITES

The client computer must be running Windows NT4.0, Windows 95 or Windows 98 with a connection to the Internet already established, either by dialing up or having a permanent connection through an internet service provider (ISP).  Once the internet connection has been made the VPN dialup network connection can then be used to dial the IP address of the host server to establish a "virtual private network" connection using the correct user id and password. 

SETTING UP VPN CLIENT ON WINDOWS NT4.0 WORKSTATION

Instructions:

1. Click Start, Settings and Control Panel, then double click Network and select the Protocols Tab.
2. Click Add, select Point To Point Tunneling Protocol and click OK.
3. If your modem (and therefore Remote Access Services (RAS)) has been installed previously the Windows NT Setup screen will appear and prompt for the location of the NT source files. Enter the directory name together with the drive number (e.g.,D:\i386) for the location of the NT source files and click Continue.
4. Select the desired Number of Virtual Private Networks (normally 1) and click OK.
5. Click OK on the RAS Setup Message screen and the Remote Access screen will appear.  Click Add
6. In the Add RAS Device dialog box, select VPN1-RASPPTPM as the RAS Capable Device and click OK.
7. In the Remote Access Setup dialog box, highlight VPN1-RASPPTPM and click Configure.
8. In the Configure Port Usage dialog box, make sure only Dial out only is checked and click OK.
9. In the Remote Access Setup dialog box, click Network.
10. In the Network Configuration dialog box, make sure TCP/IP is checked, and click OK.
11. In the Remote Access Setup dialog box, click Continue to return to the Network dialog box and click Close.
12. Click Yes to restart the computer.
13. After the computer restarts and returns to Windows Desktop, double click My Computer and then double click Dialup Networking.
14. In the Dialup Networking dialog box, click New under Phonebook entry to dial.
15. Type in an Entry name for the dialup server, e.g. SleeplabVPN and enter Canada in the Country/region box.
16. In the Phone Number box type in the IP address 207.236.93.2 for the sleeplab VPN or the Host name infotrust.net, and make sure that Use Telephony dialing properties is not checked.
17. In the Dial using box select RASPPTPM (VPN1)
18. On the menu bar at the top of the screen click Server and in the Dial-up server type select PPP:Windows NT, Windows 95 plus, Internet and then be certain that TCP/IP is selected as the only Network protocol (IPX/SPX compatible, and NetBEUI should not be selected).
19. Click TCP/IP Settings and remove the check for Use IP header compression in the PPP TCP/IP Settings dialog box and click OK.
20. Click the Security tab on the top menu bar and select Accept only Microsoft encrypted authentication. Then click OK and the VPN client is now ready to use.
21. To create a shortcut on the Desktop, click Dial-Up Networking on the Desktop screen and select Sleeplab VPN as the Phonebook entry to dial.    Click the More button, and then the Create shortcut to entry and then select Look in Desktop followed by clicking OK to finish.

SETTING UP VPN CLIENT ON WINDOWS 98

Procedures

1. From the Control Panel, double click Add/Remove Programs.
2. Click the Windows Setup tab in the Add/Remove Programs Properties dialog box.
3. Highlight Communications and click Details.
4. Ensure that Virtual Private Networking is checked and click OK and OK again. If VPN component has not been installed previously, the computer will ask for the Windows 98 CD and install the component and the computer will restart to update the system.
5. After the computer is returned to Desktop, double click My Computer and then double click Dial-Up Networking.
6. Double click Make a New Connection in the Dialup Networking dialog box.
7. In the Welcome to Dial-Up Networking dialog box, click Next.
8. In the Make a New Connection dialog box, type in a name for the VPN connection, e.g. SleeplabVPN and select Microsoft VPN Adapter and then click Next.
9. In the next screen, type in either the Host name (infotrust.net) or IP address (207.236.93.2) and click Next.
10. Click Finish, a dial up networking icon with the name specified in step 8 will appear in the Dial-Up Networking dialog box and VPN client is ready to use. To add a shortcut on the Desktop, right click the VPN named icon, select Create Shortcut and then click Yes.

SETTING UP VPN CLIENT ON WINDOWS 95

Procedures:

1. The VPN component does not come with Windows 95 setup. However, Dial Up Networking 1.3 Performance & Security Update (MSDUN13.EXE, 2.2 MB) is available for free downloading from the networking section of the following site: http://www.microsoft.com/windows95/downloads/contents/wurecommended/s_wunetworking/dun13win95/
2. The program setup automatically starts after downloading. Alternatively, setup may be manually started by clicking Start and selecting Run. In the Run dialog box, type (full pathname):\msdun13.exe, then click OK.
3. Follow the instructions and restart the computer as instructed.
4. After the computer restarts and returns to the Windows desktop, following the steps 1 through 10 for Windows 98.

USING DIAL UP NETWORKING FOR THE SLEEPLABVPN CONNECTION

Important: Before using Dial-Up Networking for VPN, the computer must have a dialup connection to the Internet running through an ISP.

For Windows NT 4.0 Workstation

Procedures:

1. On the Windows desktop, double click the Dial-Up Networking Shortcut icon.
2. Select the name of the VPN server, e.g. SleeplabVPN, under Phonebook entry to dial, and then click Dial.
3. In the Connect to VPN server (e.g. SleeplabVPN) dialog box, type in the registered User Name, Password and Domain Name infotrust, and click OK.
4. The connection will take be established shortly.

For Windows 95 and Windows 98

Procedures:

1. On the Windows desktop, double click the SleeplabVPN Shortcut dial up networking   icon.
2. Enter the registered User name and Password then click Connect.
3. The connection will be established shortly.

Questions:

• -Remove-kumarpdp at yahoo.co.in asks:

  I have computer at 3 diffrent location with XP professional. I want to share files within our group. How can I setup like this.
  I have premanent internet connection through DSL at all 3 locations. Please help me

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