Hello Mallikarjuna,
Once you load the code to your controller, run it and you can see IP address and all related information on Hyper terminal, and try for ping. If ping is working successfully then your Ethernet is working fine..You can implement TCP or UDP protocol onto it.
For Ethernet boot loader refer AN4367 application note.
If still you have any doubt then let me know.
Regards,
Tushar M