Features of PPTP
There are several factors in PPTP’s favor. Among these are availability, easy implementation, multiprotocol tunneling, and the ability to use corporate and unregistered IP addresses.
Availability
Because PPTP is included with Windows NT Server, Workstation, and Windows 98, it is readily available to users of these platforms. No additional software need be purchased. Microsoft is giving away the PPTP upgrade for Windows 95/98 as well. In addition, it is included free of charge in many different brands of remote access switches, including Ascend, 3Com, and ECI Telematics equipment. Because it has become part of the package of a leading network operating system and numerous remote access switches, PPTP enjoys a huge product-placement advantage. An administrator for a Windows NT network can start experimenting with a VPN right away, without spending any extra money.
Easy Implementation
On Windows NT systems, PPTP is installed as a network protocol, just like IPX/ SPX, TCP/IP, or NetBEUI. In RAS, instead of using a modem as the RAS device, you use a VPN port with the name RASPPTPM. Many Windows NT administrators will already be familiar with how to set up network protocols and RAS, so using PPTP shouldn’t be difficult for them. Likewise, on Windows 95 systems, PPTP is installed as a new version of the Dial-Up Adapter that’s already a familiar part of Windows 95 Dial-Up Networking. On Windows 98, the VPN Adapter can also be installed and used like a modem for VPN connections. ...
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