Chapter 2. Installation and Start-up: RX3i Embedded InterfaceGFK-2224Q January 2017 192.3 Pinging TCP/IP Ethernet Interfaces on the NetworkPING (Packet InterNet Grouper) is the name of a program used on TCP/IP networks to test reachability ofdestinations by sending them an ICMP echo request message and waiting for a reply. Most nodes on TCP/IPnetworks, including the PACSystems Ethernet Interface, implement a PING command.You should ping each installed Ethernet Interface. When the Ethernet Interface responds to the ping, it verifiesthat the interface is operational and configured properly. Specifically it verifies that acceptable TCP/IPconfiguration information has been downloaded to the Interface.For configuration details, including setting an initial IP address, refer to Chapter 4.Pinging the Ethernet Interface from a UNIX Host or ComputerRunning TCP/IP SoftwareA ping command can be executed from a UNIX host or computer running TCP/IP (most TCP/IP communicationssoftware provides a ping command) or from another Ethernet Interface. When using a computer or UNIX host,you can refer to the documentation for the ping command, but in general all that is required is the IP address ofthe remote host as a parameter to the ping command. For example, at the command prompt type:ping 10.0.0.1Determining if an IP Address is Already Being UsedNote: This method does not guarantee that an IP address is not duplicated. It will not detect a device that isconfigured with the same IP address if it is temporarily off the network.It is very important not to duplicate IP addresses. To determine if another node on the network is using the sameIP address:1. Disconnect your Ethernet Interface from the LAN.2. Ping the disconnected Interface’s IP address. If you get an answer to the ping, the chosen IP address isalready in use by another node. You must correct this situation by assigning a unique IP addresses.
