Looking through the library file (boardsupport.h) I see that Teensy isn't in there. I have tried adding a block of code setting the default pins for (ARDUINO_TEENSY_MICROMOD) in this file, but I am having trouble determining what I should put. For reference, the ESP32 is
#define DEFAULT_ETH_INT_Pin D0
#define DEFAULT_ETH_RESET_Pin G2
#define DEFAULT_ETH_SPI_CS_Pin SS
How do I determine which pins these would be for the Teensy (or any other processor for that matter)? Also my single pair ethernet function card is on slot 0. Any help would be appreciated. Thanks.