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Lynx Incorporates certified IPv6 stack Into Flagship Embedded Platform

San Jose, Calif. - July 21, 2022 - Lynx Software Technologies (Lynx), a developer of open architecture software solutions for mission-critical embedded systems, today announced that its LynxOS-178 platform for safety-critical applications such as military and aerospace systems now supports IPv6. Support for IPv6 will enable devices running on LynxOS-178 with advanced addressing and other enhancements such as improved security via support for IPsec as well as simplified packet processing to be better equipped for performance.

The U.S. Department of Defense has mandated that at least 20% of internet-connected devices on its networks be IPv6-only by the end of 2023, ramping up to at least 80% by the end of 2025. This mandate has prompted Tier 1 avionics companies to build their next-generation devices and vehicles with support for the new protocol. Existing devices and vehicles are built around IPv4, the previous generation of IP addresses that has been in use since the 1980s.

IPv6 is the culmination of a number of requests for comments (RFC) issued by the Internet Engineering Task Force (IETF) that outline the behavior, innovations, methods and research around how the internet and internet-connected systems work. In updating LynxOS-178, Lynx has prioritized those RFCs of most interest to the avionics market and has attained compliance with the most stringent safety certification, DO-178C DAL A. These RFCs include:

•  RFC 8200: Internet Protocol, Version 6 (IPv6) Specification
•  RFC 4443: ICMPv6 for the IPV6, used by routers and other network devices to send
   operational messages
•  RFC 4291: IP Version 6 Addressing Architecture, which defines IPv6 addressing architecture
•  RFC 2464: Transmission of IPv6 Packets over Ethernet Networks, which provides a format for
   packet transmission
•  RFC 3493: Basic Socket Interface Extensions for IPv6, which defines the application program
   interface (API) for TCP/IP transmission

Lynx plans to continue evolving LynxOS-178 to include support for additional RFCs over time based on customer demand.

“IPv6 represents a sea change in how modern airplanes and other avionics systems are designed,” said Ian Ferguson, VP of marketing for Lynx Software Technologies. “With its support for IPv6, LynxOS-178 will enable the industry to develop systems using a modern architecture, knowing that they will remain current for generations to come.”


About Lynx Software Technologies
Lynx Software Technologies is the premier Mission Critical Edge company that enables safe, secure and high-performance environments for global customers in aerospace and automotive, enterprise and industrial markets. Since 1988, companies have trusted Lynx’s real-time operating system, virtualization and system certification experience, which uniquely enables mixed criticality systems to be harnessed and deliver deterministic real-time performance and intelligent decision-making. Together with a growing set of technology partners, Lynx is realizing a new class of Mission Critical Edge systems that keep people and valuable data protected, at every moment. For more information, visit

For Lynx
Kirsten Nelson
Lynx Software technologies
+1 (408) 206-5753

Peter van der Sluijs
Neesham PR
+44 1296 628180

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