Usage code https://code.google.com/p/agentuino/

Implemented SNMP trap functions from Enmyerp http://forum.arduino.cc/index.php?topic=50848.60

@EDIT M. Pivovarsky  <miroslav.pivovarsky@gmail.com>

Extended version - with memory library
Simple version - without memory library 

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SNMP v1

PDU Types
    GET-Request
    SET-Request
    Response
    Trap
    
Syntax Types
    Null
    Boolean
    Bits (WIP)
    Octet-String
    Object-Identifier (WIP)
    Integer and Integer32
    Counter and Counter64
    Gauge
    Time-Ticks
    IP-Address
    Opaque
    Network-Service-Access-Point (NSAP) Address
    
Limitations
    Agentuino's limitation is dependent on the amount of SRAM available.

    Maximum Community Names (Get/Set) Length: 20 bytes
    Maximum Object-Identifier Length: 64 bytes
    Maximum Value Length: 64 bytes
    Maximum Packet Length: 153 bytes
    
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Net-Snmp Get-Request

snmpget -v 1 -r 1 -c public 192.168.2.64 sysUpTime.0

Net-Snmp Set

snmpset -v 1 -r 1 -c private 192.168.2.64 sysName.0 s NewName

snmpget -v 1 -r 1 -c public 192.168.2.64 sysName.0