Nucleus Layer 2 Tunneling Protocol Connects Users to VPN Via Internet

7/13/2005 - Accelerated Technology, a Mentor Graphics division (Nasdaq: MENT), announced availability of the Nucleus(r) Layer 2 Tunneling Protocol (L2TP) software. The royalty-free software allows networking developers to establish a secure, virtual private network (VPN) connection over the Internet for use in building data-sensitive VPN applications.

The Nucleus L2TP software, combined with the Nucleus NET networking stack and the Nucleus IPsec security package, provides embedded developers with a complete VPN solution. Application programming interfaces (APIs) are supplied for creating VPN capable devices, which enable mobile or telecommuting users to connect to and access data from a corporate or private network using a public network such as the Internet. Using the Nucleus software solution, embedded developers can build a device to establish an L2TP tunnel from the host to the L2TP private network server. This allows developers to then establish a session and access the private network resources that become available to the host over the L2TP tunnel.

"L2TP, the replacement for the point-to-point tunneling protocol (PPTP), is a much improved, more secure VPN solution and is a natural progression for network access vendors and equipment manufacturers. The Nucleus L2TP software solution is fully integrated and tested with the rest of our extensive Nucleus networking family and meets the increasing secure connectivity needs of our customers," said Robert Day, director of marketing, Accelerated Technology Division, Mentor Graphics.

The Nucleus L2TP software is highly configurable allowing customization for different needs. L2TP network server (LNS) and L2TP access concentrator (LAC) are supported in this single software package. The Nucleus L2TP software is fully conformant with RFC 2661, ensuring interoperability with other implementations. To help achieve a high level of conformance and interoperability, the Nucleus L2TP software has been tested against Ixia's Automate Network Validation Library (ANVL), as well as against Red Hat Linux, Windows XP and Windows 2003 Server.

Pricing and Availability
The Nucleus embedded software is sold in source code format and without royalty fees. Licenses for the Nucleus L2TP software begin at U.S. $4,995. The L2TP MIB is part of the Nucleus L2TP package and allows remote monitoring and configuring of L2TP tunnels and sessions. For more information, please contact Accelerated Technology at 800-468-6853 or

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $700 million and employs approximately 3,850 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site:

Accelerated Technology, a division of Mentor Graphics Corporation, is located in Mobile, Alabama and has engineering sites, sales offices and distributors worldwide. As a leading provider of royalty-free, embedded real-time operating system (RTOS) software, Accelerated Technology helps developers accelerate product time-to-market in a wide range of embedded device applications. Its comprehensive Nucleus RTOS includes a high-level UML suite, graphical prototyping tools, kernels, middleware and Eclipse-based development tools. For more information, please visit or e-mail us at

Mentor Graphics, Accelerated Technology and Nucleus are registered trademarks of Mentor Graphics Corporation.

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