The goal was to port LWIP library to a project running Hightec PXROS-HR (Portable eXtendible Realtime Operating System – High Reliability) operating system. The library was ported to Encapsulated Task with hardware memory protection together with low-level drivers taken from Infineon‘s iLLD library. This integration approach leverages PXROS intrinsic mechanisms to safeguard the unverified library, thereby bypassing the expensive certification process.