The undisciplined local clock driver assumes that the local system clock reflects accurate time. This is useful when, in the absence of an external time source, you simply wish for all hosts on a network to agree on time. In this case, you may elect one host to act as server using the undisciplined local clock driver and synchronize all other hosts to this server. Also, some GPS clocks provide their own software to synchronize the local system to their GPS hardware. If you have one of these units and wish to use PresenTense Time Server to distribute time to clients on your network, you can use the undisciplined local clock option. See local clock stratum fudge if your time clients are rejecting the NTP responses they receive.