PPTP Point-to-Point Tunneling Protocol.

The Internet can be used for low-cost, secure remote access to a corporate network with virtual private networking support on Windows NT. This new protocol works by using a local call to an Internet service provider to gain secure access to the corporate network using the Internet. PPTP, an open, industry standard, supports the most prevalent networking protocols—IP, IPX, and Microsoft Networking (NetBEUI). Companies can use PPTP to outsource their remote dial-up needs to an Internet service provider or other carrier to reduce cost and complexity.

Also:

• PPP
• SLIP

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