zeek-plugin-bacnet icon indicating copy to clipboard operation
zeek-plugin-bacnet copied to clipboard

vendor proprietary Network Layer Message if network_layer_message_type in the range X'80' - X'FF'

Open duffy-ocraven opened this issue 4 years ago • 1 comments

Vendor Proprietary Network Layer Message is specified if Bit 7 of the control octet is 1 and the network_layer_message_type octet contains a value in the range X'80' - X'FF'. For vendor proprietary Network Layer Messages, it is mandated that a Vendor_ID field appears after the network_layer_message_type as a two octet value, high octet first. The remaining UDP/BLVC/NPDU content that follows, if any, is vendor defined.

duffy-ocraven avatar Sep 24 '20 02:09 duffy-ocraven