Hi
New Freedom FRDM-K64F board
There is pre-built simulator at that link which can be tried [it takes about 30..40s from clicking the download link to running a virtual FRDM-K64F with Ethernet, Web server, Telenet, SD card and USB (although Winpcap should be installed on the PC due to its DLL being needed - it is already there if Wireshark has been installed].
Regards
Mark