SNMP Version 3

[kenytux]

Hello,
I'm having a problem with SNMP version 3.
When my snmp.yml file looks like this:

  dell_dd6400:
    version: 3
    community: mycommunity
    username: myuser
    security_level: authNoPriv
    password: "mypass"
    auth_protocol: MD5   # ou MD5 selon ta config

modules:
  dell_dd6400:
    walk:
      - 1.3.6.1.4.1.19746
    get:
      # CPU & RAM
      - 1.3.6.1.4.1.19746.1.4.1.0   # CPU %
      - 1.3.6.1.4.1.19746.1.4.2.0   # RAM %
...

I get the following error:

Unknown auth 'public_v2'

When I change my snmp.yml file like this:

  dell_dd6400:
    version: 3
    community: smartgrid
    username: snmp_datadomain
    security_level: authNoPriv
    password: "1Ver2Sky"
    auth_protocol: MD5   # ou MD5 selon ta config

modules:
  dell_dd6400:
    auth: dell_dd6400
    walk:
      - 1.3.6.1.4.1.19746
    get:
      # CPU & RAM
      - 1.3.6.1.4.1.19746.1.4.1.0   # CPU %
      - 1.3.6.1.4.1.19746.1.4.2.0   # RAM %
...

I get the following error:

line 12: field auth not found in type config.plain"

What should my snmp.yml file look like to make it work with SNMP version 3?

[bastischubert]

How does your scrape config look like? Does it use dell_dd6400 as auth parameter?
see https://github.com/prometheus/snmp_exporter?tab=readme-ov-file#running

[kenytux]

I don't understand.
Did you mean my snmp.yml file?
How do I have to tell it to use auth as parameter?

[bastischubert]

I was talking about your scrape config in prometheus - sorry could have clarified this on the first message