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Kepware's ControlLogix Ethernet Driver supports gateway connections via the 1756-ENBT Ethernet module or any supported routing-capable Ethernet module (like the 1756-ENET) as long as the last Logix5000 module in the routing path is one of the following:

• ControlLogix 5500 Processor for ControlLogix applications
• SoftLogix 5800 Processor for SoftLogix applications
• 1756-DHRIO Interface Module for DH+ Gateway applications
• 1756-CNB or 1756-CNBR Interface Module for ControlNet Gateway applications