© National Instruments Corporation 3-1 ENET-232 and ENET-485 Series User Manual3Ethernet ConfigurationThis chapter describes how to use NI Ethernet device configuration toconfigure the network parameters of a serial device server on your subnet.With it, you can do the following:• Manually configure the network parameters or enable DHCP• Verify or change the device hostname• Add or change a comment to help identify the deviceThe serial device server must be in network configuration mode before youcan make changes to the network parameters.Entering Network Configuration ModeIf DHCP is available on your network, it configures the network parametersfor your serial device server at startup. In this case, using NI Ethernetdevice configuration is not necessary.If the serial device server is configured to use DHCP, and DHCP isunavailable, the unit automatically enters network configuration mode aftera 60 second timeout. The unit must be in this mode before you can makechanges to the network parameters.You also can enter this mode during normal operation by pressing andholding the CFG RESET switch for three seconds. Refer to the sectionUsing the CFG RESET Switch, in Chapter 6, Using Your Serial DeviceServer, for more information on using this switch.While in network configuration mode, the PWR/RDY LED alternatesrapidly between red and yellow, and normal operation is halted.Note If you only want to view the network configuration settings without makingchanges, you do not need to place the unit into network configuration mode. While innormal operation, you can follow the instructions in the following section, Using NIEthernet Device Configuration, and examine the properties for any National InstrumentsEthernet device on your subnet. However, any changes you attempt to make to the networkparameters while in normal operating mode will not take effect.