Cisco Cisco Firepower Management Center 4000 Entwickleranleitung

Version 5.3

Sourcefire 3D System eStreamer Integration Guide

243

Understanding Discovery & Connection Data Structures

Host Discovery and Connection Data Blocks

Chapter 4

Protocol Data Block

The Protocol data block defines protocols. It is a very simple data block, with only 

the block type, block length, and the IANA protocol number identifying the 

protocol. The Protocol data block has a block type of 4 in the series 1 group of 

blocks.
The following graphic shows the format of the Protocol data block:

String Block 

Length

uint32

Number of bytes in the Sub-Server version 

String data block, including the string block 

type and length fields, plus the number of 

bytes in the version.

Version

string

Sub-server version.

Sub-Server Data Block Fields (Continued)

Byte

0

1

2

3

Bit

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Protocol Block Type (4)

Protocol Block Length

Protocol