Overview
In industrial networking environments, efficient communication between internal applications and external servers is essential for seamless operations. However, the requirement for each application to have a public routable IP address, in addition to the IP address for switch management, poses challenges for network administrators. This additional overhead and the need for multiple routable IP addresses for Industrial Ethernet (IE) devices act as barriers to the widespread adoption of application hosting solutions.
To address these challenges, the Layer3 Network Address Translation (L3NAT) for IOx applications is supported for IOx applications starting with IOS XE release 17.14.1. This feature uses the management IP of the switch as a proxy for all applications within the routed network. The complexity and overhead associated with managing multiple public IP addresses is reduced.The IE3x00 platform supports the L3NAT feature with the Cisco Cisco Cyber Vision (CCV) IOx application. It cannot be used to NAT other Ethernet traffic from hosts connected to its physical Ethernet ports.