Win2K VPN connections
Erik Eckel Network+, MCP+I, MCSE
Published: 18 Jun 2002 16:17 BST
Increasingly, network administrators are turning to virtual private networking (VPN) connections to link remote workers to LANs. Windows 2000 includes VPN functionality, and even if you're not using VPNs at your organisation, you'll need to be familiar with Win2K's VPN feature if you're planning on sitting for any of the following exams:
Why a VPN?
VPNs have caught on quickly primarily because they:
By using tunneling protocols, such as PPTP or LT2P, secure connections can be configured between a client's laptop or home machine and a company's LAN, as diagrammed in Figure A.
| Figure A |
 |
| VPNs use tunneling protocols to create secure connections through the Public Switched Telephone Network. |
The Windows 2000 Network Connection Wizard offers two methods for connecting to private networks. The Network Connection Wizard can be reached by clicking Start | Settings | Network And Dial-up Connections | Make New Connection from within Windows 2000 Professional. The method you select will depend largely on the telecommunications technology you have in place.
You should select Dial-up To Private Network if you plan to use a traditional 56Kbps modem or ISDN connection. You should select Connect To A Private Network Through The Internet if you wish to use a preexisting Internet connection. Most likely, if you're using a cable modem or a DSL connection, you'll choose this option.
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