The DeltaV system requires a specific hardware and software version of the firewall IPD and a special configuration that includes the packet inspection rules and packet rate limits that have been tested with the DeltaV system. DeltaV firewall IPDs ordered from Emerson Automation Solutions are shipped with the supported software and are pre-configured to operate properly with the DeltaV system. To ensure that you have the proper firewall IPD configuration and the correct hardware and software versions, you must purchase the firewall IPD through normal Emerson channels.