Overview of VPN Technologies :: essays research papers

Multi-vendor interoperability for virtual(prenominal) private networking is essential in todays networking environment receivable to the nature of business acquisitions, the need to extend corporate networks to contractors and partners, and the diverse equipment within company networks. To ensure customers have an open solving, Microsoft Windows Server 2003-establish VPN technology is based on industry standards. By supporting IETF industry standards, Microsoft delivers a VPN solution that will work with other standard-compliant devices or softw atomic number 18 systems, helping to commence the cost and complexity of supporting proprietary solutions. Customers who use standards-based technology argon not locked into any given vendors proprietary implementations. Microsoft supports the IETF efforts to govern VPN technology. To date, two major technologies are IETF standardsLayer Two Tunneling Protocol (L2TP)a faction of PPTP and Ciscos Layer 2 Forwarding, which evolved through the IETF standards process.profit Protocol Security (IPSec)an architecture, protocol, and related Internet Key Exchange (IKE) protocol, which are described by IETF RFCs 2401-2409.The combination of these technologies is described in RFC 3193, an IETF Proposed Standard.In summing up to IETF standards-track technologies, Microsoft supports PPTP, created by the PPTP Industry Forum (US Robotics now 3Com, 3Com/Primary Access, Ascend, Microsoft, and ECI Telematics.) PPTP is a published informational RFC (RFC 2637) and has many a(prenominal) companies shipping third-party implementations.For advanced security requirements, IPSec has emerged as a key technology. However, IPSec turn over mode by itself does support legacy authentication methods, tunnel IP address assignment and configuration, and multiple protocolsall critical requirements for remote bother VPN connections. To provide a truly interoperable solution, Windows Server 2003 uses L2TP in combination with IPSec to provide an in teroperable, secure VPN solution. L2TP has broad vendor support, particularly among the largest network doorway equipment providers, and has verified interoperability in a series of vendor-sponsored testing events.