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Not really familiar with the Boeing architecture, but having worked on similar systems for other commercial aircraft, "firewall" is an understatement for the sy
by Neracked 9y ago
Not really familiar with the Boeing architecture, but having worked on similar systems for other commercial aircraft, "firewall" is an understatement for the systems that act as gateways between the aircraft network domains with different criticality levels.
The IFE is in the Passenger Information and Entertainment Services Domain (as defined by the standard ARINC664 Aircraft Data Networks). A basic assumption regarding the connectivity to more sensitive domains is that PIESD is totally insecure and anything can happen.
Finally to people wondering why aircraft designers would physically connect networks with vastly different security requirements: it's for making it possible to share aircraft/ground communication means (satcom...)