The SMARTzynq board from SoC-e includes a new reference design that solves the emerging demand in the Industry for Plug&Work network equipment with embedded cyber-secure authentication means. The implementation combines bumpless, redundant 1GE HSR/PRP ports with an 802.1X Tri-speed Ethernet port in a Redbox-DAN architecture that is managed under Linux. The authentication process can be tested using Windows 802.1X supplicant standard tool.