CIP-003-7 Supplemental Material
Routable communication entering or leaving the asset containing low impact BES Cyber System(s), but no communication between a low impact BES Cyber System and a Cyber Asset outside the asset
No communication is permitted between the control network segment and the non-control network segment
Routable Protocol
Network Device with logical network segmentation (Cyber Asset(s) providing electronic access controls)
Low impact BES Cyber System
Non-BES Cyber Asset
Low impact BES Cyber System
Non-BES Cyber Asset
Non-Control Network Segment
Control Network Segment
Asset containing low impact BES Cyber System(s)
Communication between a low impact BES Cyber System and a Cyber Asset outside the asset
Non-routable Protocol
Routable Protocol
Reference Model 9
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