1. A method for flexibly configuring default values of a network device through an EEPROM interface, comprising: receiving a header from an EEPROM through the EEPROM interface; determining from the header whether any default value of the network device should be updated; fetching at least one configuration instruction from the EEPROM when the determining step determines that the network device should be updated; interpreting said at least one configuration instruction; and changing a register default value of said default values corresponding to said interpreted at least one configuration instruction.