Chapter 4. ConfigurationGFK-2224Q January 2017 37If you have no network administrator and are using a simple isolated network with no gateways, you can usethe following range of values for the assignment of local IP addresses:10.0.0.1 First Ethernet interface10.0.0.2 Second Ethernet interface10.0.0.3 Third Ethernet interface. .. .. .10.0.0.255 Programmer TCP or hostAlso, in this case, set the subnet mask to 255.0.0.0 and the gateway IP address to 0.0.0.0.Note: If the isolated network is connected to another network, the IP addresses 10.0.0.1 through 10.0.0.255must not be used; and the subnet mask and gateway IP address must be assigned by the networkadministrator. The IP addresses must be assigned so that they are compatible with the connectednetwork.Subnet Mask: Key in the desired mask in the format indicated. Learn more about subnet mask usage at SubnetAddressing and Subnet Masks on page 246.Gateway IP Address: Key in the desired Gateway IP Address in the format indicated. Learn more aboutGateways on page 245.Network Time Sync: Options are “None” and “SNTP”. Select SNTP (Simple Network Time Protocol) if the CPU willbe synchronized to the network clock.SNTP PME configuration for the CPE305/CPE310/CPE330/CPE400 CPU settings