It seems that the M3 chip has Ethernet capability, is it usable in the Arduino Due?
I've been using the standard Ethernet Board with the Beta release and pushing data on some watermeters I'm recording to COSM. Worked nicely and reliably.
Looking at the hardware, PB0-PB9 - the ehternet pins - are run to a connector with 14pins - labeled on the schematic MACB - but can't visually see anything on the board that specifies MAC. The MACB has no gnd or power shown - so looks like expected to be used with other pins. Neil