from the SILabs forum http://www.cygnal.org/ubb/Forum1/HTML/001501.html

The Embedded Ethernet Development kit has just been released. The kit includes an 'F12x Target Board, AB2 Ethernet Development Board, and has a TCP/IP Configuration wizard that generates 'C' source code that calls into the CMX TCP/IP Stack. The CMX TCP/IP Stack is included free of charge or royalties.

Erik Malund