METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR AUTOMATICALLY GENERATING A FUZZER THAT IMPLEMENTS FUNCTIONAL AND FUZZ TESTING AND TESTING A NETWORK DEVICE USING THE FUZZER

Methods, systems, and computer readable media for automatically generating a fuzzer for testing a network device using the fuzzer are disclosed. According to one method, a functional description of a network communications protocol finite state machine is received as input. Operation of the protocol is simulated using the functional description of the network communications protocol finite state machine to generate a set of valid conversations in the protocol. A fuzzer is generated from the set of valid conversations. The fuzzer is used to send messages to test a device under test. Responses to the device under test to the messages generated by the fuzzer are analyzed.