Cisco Cisco Firepower Management Center 2000 Guia Do Programador

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Version 5.3
Sourcefire 3D System eStreamer Integration Guide
200
Understanding Discovery & Connection Data Structures
Metadata for Discovery Events
Chapter 4
Discovery Event Header Fields 
F
IELD
D
ATA
 
T
YPES
D
ESCRIPTION
Device ID
uint32
ID number of the device that generated the 
discovery event. You can obtain the metadata 
for the device by requesting Version 3 and 4 
metadata. See 
 on page 99 for more information.
Legacy IP 
Address
uint32
IPv4 address of the host involved in the event. 
If the Has IPv6 flag is set, this will contain 
0.0.0.0
.
MAC Address
uint8[6]
MAC address of the host involved in the event.
Has IPv6
uint8
Flag indicating that the host has an IPv6 
address.
Reserved for 
future use
uint8
Reserved for future use
Event Second
uint32
UNIX timestamp (seconds since 01/01/1970) 
that the system generated the event.
Event 
Microsecond
uint32
Microsecond (one millionth of a second) 
increment that the system generated the 
event.
Event Type
uint32
Event type (1000 for new events, 1001 for 
change events, 1002 for user input events, 
1050 for full host profile). See 
 on page 205 for a list 
of available event types.
Event Subtype
uint32
Event subtype. See 
 on page 205 for a list of available 
event subtypes.
File Number
byte[4]
Serial file number. This field is for Sourcefire 
internal use and can be disregarded.
File Position
byte[4]
Event’s position in the serial file. This field is 
for Sourcefire internal use and can be 
disregarded.
IPv6 Address
uin8[16]
IPv6 address. This field is present and used if 
the Has IPv6 flag is set.