Format of SNMP messages

IP

header

UDP

header

version

(0)

community

PDU

type

(0- 3)

request

ID

error

status

(0 - 5)

error

index

name

value

name

value

...

PDU

type

(4)

enterprise

agent

addr

trap

type

(0 - 6)

specific

code

time

stamp

name

value

...

trap header

interesting

variables

IP datagram

UDP datagram

SNMP message

common SNMP header

get / set header

get / set header

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