Point-to-point tunneling protocol

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Topic: Point-to-point tunneling protocol

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	Point-to-point tunneling protocol - Wikipedia, the free encyclopedia
		PPTP is popular because it is easy to configure and it was the first VPN protocol that was supported by Microsoft Dial-up Networking.
		The PPTP protocol works by sending a regular PPP session to the peer with the Generic Routing Encapsulation (GRE) protocol.
		PPTP is difficult to forward past a network firewall because it requires two network sessions.
	en.wikipedia.org /wiki/Point-to-point_tunneling_protocol (451 words)

	PPTP - Point to Point Tunneling Protocol
		Abbreviation for Point To Point Tunneling Protocol.
		Point-to-Point Tunneling Protocol, a more secure scheme of PPP, where the packets are encrypted before transmission.
		Point-to-Point Tunneling Protocol, used in some Microsoft VPN implementations.
	www.auditmypc.com /acronym/PPTP.asp (587 words)

	rfc2637.txt
		Informational [Page 18] RFC 2637 Point-to-Point Tunneling Protocol (PPTP) July 1999 Error Code This field is set to 0 unless a "General Error" condition exists, in which case Result Code is set to 2 and this field is set to the value corresponding to the general error condition as specified in section 2.2.
		Tunnel Protocol Operation The user data carried by the PPTP protocol are PPP data packets.
		PPTP does not dictate the particular algorithms to be used for this low level control but it does define the parameters that must be communicated in order to allow such algorithms to work.
	ietf.org /rfc/rfc2637.txt (11165 words)

	PPTP - Glossary - CNET.com
		PPTP is a protocol developed by a number of companies, including Microsoft, that allows secure transmission of data in TCP/IP packets.
		PPTP and similar protocols are used to carry secure communications over Virtual Private Networks that use public phone lines.
	www.cnet.com /Resources/Info/Glossary/Terms/pptp.html (40 words)

	Point-to-Point Tunneling Protocol
		PPTP tunneling has particular significance if your IP network is using addresses that you haven't registered with InterNIC or addresses that InterNIC has reserved for private networks (such as the 10.x.x.x range).
		PPTP helps you put the mundane task of modem management into the hands of people who are experts at it--Internet Service Providers (ISPs).
		PPTP installation then launches Remote Access Setup, shown in Screen 2, where you add all your VPN devices to your RAS server, in the same way that you add modems.
	www.windowsitpro.com /Articles/Index.cfm?ArticleID=461 (2061 words)

	What is PPTP? - A Word Definition From the Webopedia Computer Dictionary
		Short for Point-to-Point Tunneling Protocol, a new technology for creating Virtual Private Networks (VPNs), developed jointly by Microsoft Corporation, U.S. Robotics, and several remote access vendor companies, known collectively as the PPTP Forum.
		Because the Internet is essentially an open network, the Point-to-Point Tunneling Protocol (PPTP) is used to ensure that messages transmitted from one VPN node to another are secure.
		A VPN is a private network of computers that uses the public Internet to connect some nodes.
	www.webopedia.com /TERM/P/PPTP.html (154 words)

	Point to point tunneling protocol - Point to Point Tunneling Protocol Unknown Control Type
		The Point-to-Point Protocol (PPP, RFC 1661) is a mature protocol with a Layer Two Tunneling Protocol 'L2TP' (RFC 2661) (0 bytes)
		This document describes the Point to Point Tunneling Protocol (PPTP) developed by the PPTP Forum.
		RFC 2637 Point-to-Point Tunneling Protocol (PPTP) July 1999 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	iwon.siteslinks.com /sil/iwon-point-to-point-tunneling-protocol.htm (232 words)

	NT RAS Point to Point Tunneling Protocol hole
		I have been working with point to point tunnelling protocol and discovered (by accident) that if you send a pptp start session request with an invalid packet length in the pptp packet header that it will crash an NT box.
		Also, I am unable to test it with different hotfixes, etc. I discovered that NT 4.0 w/SP3 and RAS PPTP is vulnerable to a DOS causing core dump.
		For a free program to automate scanning your network for vulnerable hosts and services, check out my network mapping tool, nmap.
	www.insecure.org /sploits/NT.RAS.PPTP.html (172 words)

	Point-to-Point Tunneling Protocol
		New to Windows NT Workstation 4.0 is an extension to PPP called Point-to-Point Tunneling Protocol (PPTP).
		PPTP enables multiprotocol virtual private networks (VPNs), so remote users can gain secure encrypted access to their corporate networks over the Internet.
		PPTP enables a DUN client to establish a communications session with a RAS server over the Internet.
	www.measureup.com /testobjects/MS_NT4W/5a7a20e.htm (102 words)

	Point to point tunneling protocol - OneLook Dictionary Search
		Additional searches for Point to point tunneling protocol...
		Tip: Click on the first link on a line below to go directly to a page where "Point to point tunneling protocol" is defined.
		Point to Point Tunneling Protocol : TECHNICAL [home, info]
	www.onelook.com /?w=Point+to+point+tunneling+protocol (144 words)

	Don't forget about point-to-point tunneling protocol VPNs
		PPTP is the original IP tunneling protocol created by Microsoft that suffered a black eye for flaws that have long-since been corrected.
		L2TP is a compromise protocol hammered out between PPTP and Cisco's initial tunneling protocol, Layer 2 Forwarding.
		And in addition to supporting PPTP, the clients support a hybrid Layer 2 tunneling protocol (L2TP) and IPSec VPN, also for free.
	www.networkworld.com /newsletters/vpn/2003/0929vpn1.html (986 words)

	PPTP Client
		This is necessary for Linux clients and servers to interoperate with Microsoft Point-to-Point Tunneling Protocol (PPTP) servers (either Microsoft PPTP servers or the poptop project) which use MPPE to encrypt data when creating a VPN.
		PPTP Client is a Linux, FreeBSD, NetBSD and OpenBSD client for the proprietary Microsoft Point-to-Point Tunneling Protocol, PPTP.
		Your documentation is excellent and easy to follow, thank you very much, everything is working with minimal effort.
	pptpclient.sourceforge.net (1205 words)

	Data Center Design by PTS Data Center Solutions, Inc. - Data Center Design Solutions
		Point-to-Point Tunneling Protocol is a network protocol that provides secure transfer of data from a remote client to a server.
		Protocol allowing (possibly) diskless network computer to be booted, downloading configuration (such as IP address) and the operating system from a server over the network.
		Communications protocol where a range of IP addresses are managed centrally and assigned automatically to computers on demand.
	www.ptsdcs.com /glossary.asp (6714 words)

	VPN : Point to Point Tunneling Protocol (PPTP) Setup
		Point-to-Point Tunneling Protocol (PPTP) is a protocol (set of communication rules) that allows corporations to extend their own corporate network through private "tunnels" over the public Internet.
		The following is a step-by-step guide of how to setup a client based VPN connection using the Point to Point Tunneling protocol.
		There are several protocols that can be used to achieve this including PPTP, L2TP, L2F, and IPSEC.
	www.fwhn.com /support/vpn.pptp.htm (446 words)

	Define Point to Point Tunneling Protocol - Point to Point Tunneling Protocol definition
		POINT TO POINT TUNNELING PROTOCOL - A remote access protocol that allows people to make a connection to easily connect to their local network through the Internet or some other large network.
		Define Point to Point Tunneling Protocol - Point to Point Tunneling Protocol definition
		We define what is POINT TO POINT TUNNELING PROTOCOL ?
	www.cheap-56k.com /glossary/Point+to+Point+Tunneling+Protocol.html (187 words)

	Point-to-Point Tunneling Protocol from FOLDOC
		Nearby terms: point of presence « point of sale terminal « Point-to-Point Protocol « Point-to-Point Tunneling Protocol » Poisson distribution » poke » Polka
		Microsoft Point to Point Encryption may be used with PPTP to provide an encrypted connection but PPTP itself does not use encryption.
		protocol> (PPTP) A tunneling protocol for connecting Windows NT clients and servers over Remote Access Services (RAS).
	ftp.sunet.se /foldoc/foldoc.cgi?Point-to-Point+Tunneling+Protocol (87 words)

	PPTP (Point to Point Tunneling Protocol)
		PPTP is also known as Point to Point Tunneling Protocol.
		Real Time is happy to announce that we have researched, tested and installed one method (PPTP) and we're working on others.
		The high volume of employees working on a laptop from the road or people Telecommuting from home has created the need for seamless and secure remote network access.
	www.real-time.com /security/pptp.html (226 words)

	Point-to-Point Protocol from FOLDOC
		Nearby terms: Point Of Contact « point of presence « point of sale terminal « Point-to-Point Protocol » Point-to-Point Tunneling Protocol » Poisson distribution » poke
		PPP can be configured to encapsulate different network layer protocols (such as IP, IPX, or AppleTalk) by using the appropriate Network Control Protocol (NCP).
		protocol> (PPP) The protocol defined in RFC 1661, the Internet standard for transmitting network layer datagrams (e.g.
	foldoc.org /?Point-to-Point+Protocol (116 words)

	ACRO.IT: PPTP - Point to Point Tunneling Protocol
		ACRO.IT: PPTP - Point to Point Tunneling Protocol
		In no event shall ACRO.IT be liable for any special indirect or consequential damages or any damages whatsoever resulting from loss of income or profits, whether in an action of contract, negligence or other tortious action, arising in connection with the use or performance of the information on ACRO.IT web site.
	www.acro.it /PPTP.html (171 words)

	L2TP (Layer 2 Tunneling Protocol)
		The base L2TP protocol consists of a control protocol for dynamic creation, maintenance and tear-down of L2TP sessions; and data encapsulation to multiplex and demultiplex Layer 2 datastreams between IP-connected nodes.
		L2TP, originally defined in RFC 2661, was designed to provide dynamic tunneling for multiple Layer 2 circuits across packet-oriented data networks.
		It also adds important new features such as increasing the session and tunnel ID space from 16 to 32 bits, which dramatically increases the number of tunnels from 65,000 to more than 4 billion.
	www.networkworld.com /details/511.html (781 words)

	PPTP-linux: Point-to-Point Tunneling Protocol
		More information on the PPTP protocol can be found at http://www.microsoft.com/backoffice/communications/pptp.htm.
		PPTP-linux allows you to connect to a PPTP server from a Linux or other Unix box (ports of pptp-linux to other Unix variants should be trivial, but have not yet been performed).
		See my IPfwd page for information on tunneling PPTP through Linux firewalls.
	cag.lcs.mit.edu /~cananian/Projects/PPTP (163 words)

	Using Point-to-Point Tunneling Protocol (Downloadable Document) : [Microsoft Windows NT Server; Point-to-Point Tunneling Protocol (PPTP); Virtual Private Networks (VPN); white papers]
		Point-to-Point Tunneling Protocol (PPTP) is a networking technology that supports multiprotocol Virtual Private Networks (VPN).
		Using Point-to-Point Tunneling Protocol (Downloadable Document) : [Microsoft Windows NT Server; Point-to-Point Tunneling Protocol (PPTP); Virtual Private Networks (VPN); white papers]
		VPN technology gives users a solution for creating secure and encrypted communication across the Internet.
	www.microsoft.com /ntserver/techresources/commnet/PPTP/pptpwp.asp (51 words)

	Point-to-Point Tunneling Protocol (PPTP) FAQ : [Microsoft Windows NT Server 4.0; Point-To-Point Tunneling Protocol (PPTP); Virtual Private Networks (VPN); Secure Sockets Layer (SSL); firewall technology; PPTP encryption]
		Because many ISPs are expected to upgrade their points of presence to support PPTP, you may soon be able to take advantage of PPTP through your ISP without having to change any setup in your client PC.
		By tunneling PPP, we also enable the corporate LAN administrators to expediently add/remove network access for their employees without incurring delays if this access was managed centrally by the ISP.
		MS-CHAP (PPP authentication) is used to validate the user credentials against Windows NT domains and the resulting session key is used to encrypt user data.
	www.microsoft.com /ntserver/ProductInfo/faqs/PPTPfaq.asp (2298 words)

	Point-to-point tunneling protocol - Wikipedia, the free encyclopedia
		The failure of PPTP as a VPN protocol is caused by cryptographic design errors in the Cisco LEAP and Microsoft MSCHAP-v2 handshake protocols, and by key length limitations in MPPE.
		The PPTP protocol works by sending a regular PPP session to the peer with the Generic Routing Encapsulation (GRE) protocol.
		PPTP is popular because it is easy to configure and it was the first VPN protocol that was supported by Microsoft Dial-up Networking.
	en.wikipedia.org /wiki/Point-to-point_tunneling_protocol (523 words)

	RFC 2637 (rfc2637) - Point-to-Point Tunneling Protocol
		The protocol used to carry PPP protocol data units (PDUs) between the PAC and PNS, as well as call control and management is addressed by PPTP.
		Enhanced GRE header The GRE header used in PPTP is enhanced slightly from that specified in the current GRE protocol specification [1,2].
		The tunnel protocol is defined by a modified version of GRE [1,2].
	www.faqs.org /rfcs/rfc2637.html (11154 words)

	High-Tech Dictionary Definition
		(PPTP).A version of PPP (Point-to-Point Protocol) that has the ability to encapsulate packets of data formatted for one network protocol in packets used by another protocol.This tunneling technique allows TCP/IP data to be transmitted over a non-TCP/IP network.PPTP can be used to join different physical networks using the Internet as an intermediary.
	www.computeruser.com /resources/dictionary/definition.html?lookup=5161 (52 words)

	Point-to-Point Tunneling Protocol - a Whatis.com definition - see also: PPTP
		Point-to-Point Tunneling Protocol (PPTP) is a protocol (set of communication rules) that allows corporations to extend their own corporate network through private "tunnels" over the public Internet.
		Find white papers, products and vendors related to Point-to-Point Tunneling Protocol.
		With PPTP, which is an extension of the Internet's Point-to-Point Protocol (PPP), any user of a PC with PPP client support is able to use an independent service provider (ISP) to connect securely to a server elsewhere in the user's company.
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci214312,00.html (259 words)

	Point-to-Point Tunneling Protocol
		Having read the June “Point-to-Point Tunneling Protocol” article by Douglas Toombs, I believe his review of the security of information exchanged between a RAS server and client is incorrect.
		Choose Point To Point Tunneling Protocol, as shown in Screen 1.
		Your first connection, or pipe, is your Point-to-Point Protocol (PPP) connection to your ISP; your second connection is your PPTP connection, which tunnels through your first connection.
	www.windowsitpro.com /Windows/Article/ArticleID/461/461.html (2049 words)

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Topic: Point-to-point tunneling protocol

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