At the end it results in wrong parameters in the generated lwipopts.h file, eg:
#define CONFIG_LINKSPEED_AUTODETEC 1
Found solution is easy. After filling and closing the form of the “Board Support Package Settings” open the tab 'source' of the xxx_bsp Board support Package window. At the end of the text in the LWIP section add the missing figure(s) at the end of the line.