I need to make the exchange of information between my development board that is using the LPC1768 and a computer through the "ETHERNET" communication using UDP and SNMP. Since the computer is the CLIENT and the SERVER plate. Can anyone help me somehow? Thank you.
Those are links to the manual. You're going to have to study the whole manual - which will include finding the supported processors.
Note that the library manuals will assume that you are already familiar with TCP, IP, etc.
Short of paying someone to do this for you, you can't escape the study & learning phase...