Omega C4EIT/-EIT manual Arp -g ﬁ Same as arp -a, 192.168.1.96, Appendix G ARP Program

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Appendix G

ARP Program

ARP is the Internet layer protocol responsible for matching or obtaining the MAC (hardware) address that corresponds to a particular IP address. The ARP command allows the user to view the current contents of the ARP cache of the local computer (residing on the same network) or remote computer (residing on the different network) through a router.

Microsoft includes the ARP.EXE utility for viewing and modifying the ARP cache with its Windows products. The following ARP commands can be used to view cache entries:

•arp –aﬁ Use this command to view all ARP cache entries.

•arp –aplus IP address ﬁ Use this command to view ARP cache entries associated with one particular interface on a network with multiple adapters.

•arp –g ﬁ Same as arp –a.

•arp –Nﬁ Use this command to display ARP entries for specific network interface.

•arp – s plus IP address plus Physical address ﬁ Use this command to manually add a permanent static entry to the ARP cache.

•arp –dﬁ Use this command to manually delete a static entry.

Ping the destination computer using IP address first before using the arp -acommand.

The following window shows examples of arp commands and responses.

• Your computer has an IP address of 192.168.1.118

• The destination computer has an IP address of

192.168.1.96

Figure G-1 ARP Commands and Responses

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Contents User’s Guide Page Table of Contents Dhcp DNSList of Figures Accessing the iServer’s Home IServer DiagnosticsAssigning an IP Address using iConnect ARP Commands and ResponsesList of Tables Data Transmission Characteristics RS485ILog Error Messages Table K-1TIP Before You BeginPart Introduction EMC ConsiderationsAccessing Devices Over the Ethernet DescriptionPhysical Characteristics and Mounting Part HardwareNetwork Communication Interface Section Serial Communication Interfaces For Models with -C4EITWiring Master/Slave Units via RS485 Interface Half Duplex Hookup Pin# ISeriesRJ-45 Pinout Connecting iServer to PC/Hub/Switch/Router Network Communication Interfaces 1 10BASE-T RJ-45 PinoutNetwork Protocols Part Network ConfigurationEthernet MAC Address DNS DhcpIP Address Example C\Telnet 192.168.1.200 Command Prefix Letters Serial Interface Configuration Communication ProtocolPart Operations LSB MSB Default IP Address Pinging the iServer from a DOS PromptAccess and Configuration Using a Web Browser IServer LoginOverview 4a iServer -C4EIT OverviewIServer Network Network IServer Serial Page RS485 Serial Port IServer Serial Page Network to Serial IServer Serial Page Packing Techniques IServer Serial Page Multi-Host Connection 10 iServer Configuration Page Ethernet Configuration Date and Time 11 iServer Management Page Email, Snmp Management Email Snmp 12 iServer Management Page Alarm AT&T 13 iServer Security 14 iServer Device Query Device Setup -C4EIT 15 iServer Device Setup Page RS485 -C4EIT16 iServer Device Parameters Page -C4EIT 17 iServer Device Setup Page -EIT Device Parameters -EIT 18 iServer Device Parameters Page -EITReadings Readings Device SetpointsTerminal 21 iServer TerminalSystem 22 iServer SystemDiagnostics 23 iServer Diagnostics Page 4.5.12.1 Diagnostics Serial PortDiagnostics Ethernet Port Diagnostics PingPart Specifications Serial Interface -C4EITTime-Lag, IEC 127-3 recognized Network Interface Serial InterfaceMeasurement Category Electrical Safety EN61010-12001Part Transients Overvoltage Surge 1.2 / 50uS pulseAppendix Aglossary Appendix B IP Address Class B Appendix C IP NetmaskMask Dotted Notation Mask Binary Mask Bits Class a Class CDec Hex Binary Appendix D Ascii ChartDec Hex Binary Char No Parity No parity Dec Hex Ctrl Key Definition Appendix D Ascii Chart ContinuationAscii Control Codes Dec Hex Ctrl Key Definition Char EquivFigure E-1 Assigning an IP Address using iConnect Appendix E IConnect SoftwareFigure E-2 Accessing the iServer’s Home Appendix F HTTPget Program Communication interface skip for embedded ethernet -EIT\iServerhttpget -r -S *02X01\r Network read timeout \iServerhttpget -r -S *02X01\r 192.168.1.2002000192.168.1.96 Arp -g ﬁ Same as arp -aAppendix G ARP Program Admin Port Appendix H Telnet SetupISeries? Figure H-3 Telnet Setup iServer Help Figure I-1a Serial Tunneling iSeries -C4EIT Figure I-1b Serial Tunneling iSeries -EITFigure I-2 Device-to-Device Communication Remote iSeries -EIT/-C4EITLocal iSeries -EIT/-C4EIT Figure I-3 Serial Multi-Host Connection -C4EIT Tunneling Troubleshooting IPORT Overview IPORT, COM Port RedirectorAppendix J IPORT Figure J-2a Redirect Serial Connection Figure J-3 iPORT Main Window IPORT Configurations Figure K-1 iLog Software Logging Data for an iSeries Appendix K ILog SoftwareNetworked Product ILOG File Alternate Wireless DevicesTable K-1 iLog Excel Applications ISeriesTable K-2 iLog Error Messages Error # Description Page Page Page Page Page WARRANTY/DISCLAIMER Shop on line at omega.com