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   Compatibility
1756-EN4TR  A  3.001
  
1756-EN4TR  A  2.001
  
  Other Products - Compatibility
   Communication Ports 1756-EN4TR
A
3.001		 1756-EN4TR
A
2.001
25:TCP, SMTP (send email)
67 and 68: UDP, DHCP/BOOTP (set IP address)
161: UDP, SNMP (connection)
319 and 320: UDP, PTP (synchronization)
80: TCP, HTTP (web server)
2221: TCP, EtherNet/IP (CIP Security)
2221: UDP, EtherNet/IP (CIP Security)
2222: UDP, EtherNet/IP (I/O data)
44818: TCP, EtherNet/IP (incoming)
49152 to 65535 EtherNet/IP (outgoing)
   Release Notes   Show ALL
   Features 1756-EN4TR
A
3.001		 1756-EN4TR
A
2.001
Redundant Adapter     
   Anomaly 1756-EN4TR
A
3.001		 1756-EN4TR
A
2.001
CIP Security Configuration Not Retained on Power Cycle with SD Card Slot Reconfigured (Lgx00232273)     
1756-EN4TR cannot be configured to appear in SNMP scan (Lgx00229065)     
1756-EN4TR May Not Switchover After Reconnection     
An Internal Timing Anomaly Can Cause an Assert/MNRF     
Attempt to Change IP Address Fails After Security Profile Change (00233815)     
Cannot Update 1756-EN4TR Using Firmware Supervisor     
Double Cable Break on Secondary Adapter Can Lead to Longer Qualification Times     
Listen Only Disruptions (Lgx00232454, Lgx00232604, Lgx00232589)     
Rack-optimized Connections Can Cause an Ethernet Module to Assert     
Restrictions when the 1756-IB16SOE is used with Redundant Adapters (CVBCLXHSE-353)     
Restrictions when the 1756-IF4FXOF2F is used with Redundant Adapters (Lgx00225301)     
Sent Bytes Per Second Displays a Larger Incorrect Value     
Simultaneous Listen-Only and Rack-optimized Connections to the Same Module Can Lead To I/O Fault     
VxWorks Vulnerabilities That Affect 1756 ControlLogix® EtherNet/IP™ Communication Modules     
   Requirements 1756-EN4TR
A
3.001		 1756-EN4TR
A
2.001
Dynamic ARP in Stratix Switches     
Flashing the Firmware     
Spanning Tree Protocol used with Redundant Adapters