Ethernet access to the BMENOS0300 module is not enabled until it is served an IP address from a DHCP server.

If you wish to disable Ethernet services for the module, do not assign it an IP address. In this configuration, the module continues to operate as an Ethernet switch, but does not initiate its Ethernet services.

When the BMENOS0300 receives an IP address, the information that can be accessed via its DDDT is read-only diagnostic data, which necessarily presents only a limited security concern. If the BMENOS0300 stops functioning properly as the result of a cyber attack, the module enters a reduced functionality operating mode, in which its switching function is disabled. This response limits the likelihood of the attack affecting other devices in the Ethernet network