As far as I remember it's in w5100.h and I think it's port based so you have to dig into the datasheet of your controller.
Thanks a lot i found it.. yes i'ts in w5100.h
static const uint8_t RST = 0x80;
static const uint8_t PB = 0x10; //Is this the one to change?
static const uint8_t PPPOE = 0x08;
static const uint8_t LB = 0x04;
static const uint8_t AI = 0x02;
static const uint8_t IND = 0x01;
Thank you so much you've been a great help ![]()