User Manual

CATC SCRIPTING LANGUAGE 1.0 CHAPTER 10

Reference Manual Transaction and Packet Context Fields

• Dest_Address

IP Protocol Transactions

These transactions require the module data InputType = "IP Protocol".

Data: Raw bytes. The fully assembled buffer (includes protocol header).

DataLength: Integer. Length of Data, in bytes.

Payload: Raw bytes. Same as Data, but with the protocol header stripped off.

PayloadLength: Integer. Length of Payload buffer, in bytes.

TCP header fields

The following fields are valid for TCP headers. These are all integer values and

come directly from RFC-793.

• Source_Port

• Dest_Port

• Sequence_Number

• Acknowledgment_Number

• Data_Offset

• URG

• ACK

• EOL

• RST

• SYN

• FIN

• Window

• Checksum

• Urgent_Pointer

UDP header fields

The following fields are valid for UDP headers. These are all integer values and

come directly from RFC-768.

• Source_Port

• Dest_Port