CODEWITHSUNDEEP
snmp
ilkay
ilkay

Reputation: 1

Get only read data with SNMPv3

I have a question about SNMPv3. I'm doing my internship and they wanted me to get read only data and I cant figure out how to do it. I hope you guys can help me

Upvotes: 0

Views: 795

Answers (1)

Andrew Komiagin
Andrew Komiagin

Reputation: 6566

There are 3 commands in SNMP that allow you to read data from device:

  • GET
  • GET-NEXT
  • GET-BULK

The Get-Bulk is supported starting from SNMPv2C.

The main difference between SNMPv3 and earlier versions of the protocol is security model. There is so called User-based Security Model (USM). So first of all you'll need to configure security principals (users) on SNMP agent/device side.

After that you'll need to download SNMP tool(s) to send your SNMP requests/commands. For example if you use NET-SNMP package you can do the following:

snmpgetnext -v 3 -n "" -u MD5User -a MD5 -A "The Net-SNMP Demo Password" -l authNoPriv test.net-snmp.org sysUpTime

You can also use graphical tools like NetDecision MIB Browser (http://netmechanica.com/products/?prod_id=1009) to query the devices via SNMPv3.

MIB Browser main window You'll have to configure SNMP User Profiles in SNMP User Manager tool just like this: SNMP User Manager main window

Upvotes: 1

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