I would like to share my experience using lwIP with KSDK1.2, I hope this will be useful for people who is getting started with this TCP/IP stack.
I must admit that I really dislike working over an example application (please do not misunderstand my message, these examples are really nice but just as examples, not to develop new applications over them), the problem is that these project are not stand alone and if they are moved from their original locations it becomes a mess. This is why I always create a standalone projects.
For instance I will describe how to run ‘lwip_tcpecho_demo’ and after this, how to reproduce this example as a standalone project.
Creating a new project with lwIP support using FreeRTOS