Use this page (Configuration > Devices > System Settings > IP Address > select an IP address) to change the controller interface IP address information. You can edit IP Address, Net Mask, and Gateway IP when Assignment Type is set to Static IP address assigned and Interface Mode.
For an N+1 redundant configuration, the second Ethernet interface must be configured with a static IP address of the same L2 domain as the primary interface. For an active configuration, the second Ethernet interface must be configured with a static IP address to a different L2 domain as the primary interface.
The static IP address must be used for both active and redundant secondary Ethernet interface assignments.