To enable the LAN port on Eddy DK, please connect Eddy over WAN to a PC and enter the Web Manager over a web browser.
("Eddy Programmer Guide Chapter 5 Conifguration via Web")
Username: eddy
Password: 99999999
Under "Peripheral Settings" change "LAN" from "GPIO" to "Eddy".
Click submit and then save & reboot.
For more informations please visit
http://www.eldesi.com/wiki/LAN_on_Eddy_DK_does_not_work