sample.conf

input {
  snmp {
    get => ["1.3.6.1.2.1.1.1.0", "1.3.6.1.2.1.1.3.0", "1.3.6.1.2.1.1.5.0"]
    hosts => [{host => "udp:127.0.0.1/161" community => "public"}]
#    mib_paths => ["/path/to/some/OTHER-MIB.dic"]
  }

  snmp {
    walk => ["1.3.6.1.2.1.1"]
    hosts => [{host => "udp:127.0.0.1/161" community => "public"}]
#    mib_paths => ["/path/to/some/OTHER-MIB.dic"]
  }

  snmp {
    walk => ["1.3.6.1.2.1.1"]
#    get => ["1.3.6.1.2.1.1.1.0", "1.3.6.1.2.1.1.3.0", "1.3.6.1.2.1.1.5.0"]
    hosts => [{host => "udp:127.0.0.1/161" version => "3" timeout => 5000}]
    security_name => "rouser"
    auth_protocol => "sha"
    auth_pass => "abcd1234"
    priv_protocol => "aes"
    priv_pass => "efgh5678"
    security_level => "authPriv"

#    mib_paths => ["/path/to/some/OTHER-MIB.dic"]
  }
}

output {
  stdout {
    codec => rubydebug
  }
}