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Table 1 IEC 104 attributes

From: Improving anomaly detection in SCADA network communication with attribute extension

Attribute

Description

Destination

Destination Ethernet address

Source

Source Ethernet address

dirFrame

Transmission direction of frame

deltaTime

Time difference between 2 consecutive frames

Length

Ethernet frame length

ipTtl

Time to live

tcpHdrLen

TCP header length

tcpWinSize

TCP window size

tcpPduSize

TCP frame size

ipFlag

Indicates don’t fragment bit

Type

Format type of frame—U, S, I

TypeID

Type Identification number of format-I telegram

CauseTx

Cause of the Transmission of format-I telegram