110
Private and Global Addresses
Section 5-3
• If the TCP port number (44818) or UDP port number (44818) that is used
for EtherNet/IP cannot be used if prohibited by a firewall in the communi-
cations path.
Note Network Security and Firewalls
Setting a global IP address for an EtherNet/IP Unit or built-in EtherNet/IP port
involves network security considerations. It is recommended that the user
contract with a communications company for a dedicated line, rather than
using a general line such as a broadband line. Also, be sure to consult with a
network specialist and consider security measures such as a firewall.
Once a firewall has been set up by a communications technician, on the other
hand, there may be some applications that cannot be used. Be sure to check
first with the communications technician.
Summary of Contents for CJ2H-CPU6 - REV 02-2010
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Page 4: ...iv...
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Page 14: ...xiv...
Page 18: ...xviii...
Page 38: ...12 Network Configurator Overview Section 1 5...
Page 58: ...32 Selecting the Network Devices Section 2 3...
Page 116: ...90 Auxiliary Area Data Section 4 5...
Page 222: ...196 Message Communications Errors Section 7 6...
Page 364: ...338 Using the Backup Tool Section 13 3...
Page 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Page 404: ...378 Ethernet Network Parameters Appendix B...
Page 406: ...380 TCP Status Transitions Appendix C...
Page 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Page 460: ...434 Index...
Page 462: ...436 Revision History...
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