TM4C1294NCPDT: TM4C1294 stable LWIP Stack structure

Dear Sir,

We are using TM4C1294 for one of our project. As of now we are using ethernet stack from Energia. Now we would like to modify/ create some API on current stack.

Problem we are facing is: 1. This energia stack is not stable. It drops connection.

2. We need to access stack to modify our API

So if anyone have stable stack with code for IAR/CCS please provide me the same.

Regards.