View Source: PPTP - Waikato Linux Users Group

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An [Acronym] for __P__oint-to-__P__oint __T__unneling __P__rotocol.

[PPTP] is a protocol for creating [VirtualPrivateNetwork]s that ensures that messages transmitted from one [VPN] node to another are secure despite being transported over an open network such as the InterNet. With [PPTP], users can dial in to their corporate network via the Internet. It was developed jointly by MicrosoftCorporation, U.S. Robotics, and several remote access vendor companies, known collectively as the [PPTP] Forum.

See [PPTPServerHowto].

If you want to support this under Linux, get [PoPToP | http://www.poptop.org/]. It starts a pppd in the correct place; you might be interested in the [MPPE] patches.

[PPTP] is a great way to get onto the MetaNet (or indeed, any local network) if you're away from it and all you have is a Windows machine.

For firewalling interests: [PPTP] uses [GRE] packets (protol 47) and a [TCP] connection on port 1723 for control. Most FireWall/[NAT] implementations don't understand the [GRE] connection identifier and thus will only support one [PPTP] connection, to a single [PPTP] server, when your connection is over [NAT].  If you want to support more connections, see [PPTPConnectionTracking] for details.

15 pages link to PPTP:

Last edited on Monday, June 7, 2004 7:44:52 pm by CraigBox

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