Generator error: "cannot find oid"

[Linkoid01]

Good day,

I am having issues to generate the snmp.yml file using the generator for a private MIB from AVTech Room Alert 32E device.

The MIB file has been copied over and I am able to use it using snmpwalk.

Please see below generator error. Please note that I have tried multiple oid found with ManageEngine MIB Browser by opening the MIB file in question.

./generator generate

level=info ts=2020-07-16T06:55:09.662Z caller=net_snmp.go:142 msg="Loading MIBs" from=$HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp

level=warn ts=2020-07-16T06:55:09.821Z caller=main.go:120 msg="NetSNMP reported parse error(s)" errors=1

level=info ts=2020-07-16T06:55:10.003Z caller=main.go:52 msg="Generating config for module" module=ROOMALERT32E-MIB

level=error ts=2020-07-16T06:55:10.047Z caller=main.go:130 msg="Error generating config netsnmp" err="cannot find oid '.1.3.6.1.4.1.20916.1.8.1.2.1.1' to walk"

 However when I perform a simple snmpwalk for that specific oid it resolves just fine:

snmpwalk -v 1 -c public 172.18.232.17 .1.3.6.1.4.1.20916.1.8.1.2.1.1

ROOMALERT32E-MIB::digital-sen1-1.0 = INTEGER: 2750

OS is Debian

I am a novice at SNMP so am not sure what am I missing here.

Any advice is greatly appreciated.

[Ben Kochie]

You forgot to attach your generator config.

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[Linkoid01]

Thanks for that, completely forgot about that.

Here's what I have in the generator.yml file

modules:

# AVTech RoomAlert 32E

  ROOMALERT32E-MIB:

    walk:

# internal

      - .1.3.6.1.4.1.20916.1.8.1.1

    version: 1

    auth:

      comunity: public

    lookups:

      - source_indexes:

        lookup:

      - source_indexes:

        lookup:

    overrides:

[Ben Kochie]

The leading dot is the problem.

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[Linkoid01]

Thank you very much for your help thus far. However I am still not able to get it to generate.

I removed the leading dot. My generator.yml file looks like this now:

modules:
# AVTech RoomAlert 32E
 ROOMALERT32E-MIB:
    walk:

      - 1.3.6.1.4.1.20916.1.8.1.1.1.1
   version: 1
    auth:
      # Community string is used with SNMP v1 and v2. Defaults to "public".
      community: public
#    lookups:
#      - source_indexes:
#        lookup:
#      - source_indexes:
#        lookup:
#    overrides:

I am getting the following message:

./generator generate
level=info ts=2020-07-19T06:27:33.832Z caller=net_snmp.go:142 msg="Loading MIBs" from=$HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp
level=warn ts=2020-07-19T06:27:34.004Z caller=main.go:120 msg="NetSNMP reported parse error(s)" errors=1
level=error ts=2020-07-19T06:27:34.185Z caller=main.go:130 msg="Error generating config netsnmp" err="error parsing yml config: yaml: line 5: did not find expected key"

I removed lookups and there are no indexes mentioned in this MIB for this device.

I can perform snmpwalk on this oid just fine:

snmpwalk -v 1 -c public 172.18.232.17 .1.3.6.1.4.1.20916.1.8.1.1.1.1
ROOMALERT32E-MIB::internal-tempf.0 = INTEGER: 7826

On Sunday, July 19, 2020 at 12:20:41 AM UTC+8, Ben Kochie wrote:

The leading dot is the problem.

On Sat, Jul 18, 2020, 14:57 Linkoid01 <silv...@gmail.com> wrote:

Thanks for that, completely forgot about that.

Here's what I have in the generator.yml file

modules:

# AVTech RoomAlert 32E

  ROOMALERT32E-MIB:

    walk:

# internal

      - .1.3.6.1.4.1.20916.1.8.1.1

    version: 1

    auth:

      comunity: public

    lookups:

      - source_indexes:

        lookup:

      - source_indexes:

        lookup:

    overrides:

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[Ben Kochie]

It's hard to tell from your email, but it's likely an indenting problem with your generator yaml.

This is what I get when I generate for that walk:

https://github.com/SuperQ/tools/tree/master/snmp_exporter/avtech

On Sun, Jul 19, 2020 at 8:32 AM Linkoid01 <silv...@gmail.com> wrote:

Thank you very much for your help thus far. However I am still not able to get it to generate.

I removed the leading dot. My generator.yml file looks like this now:

modules:

# AVTech RoomAlert 32E

 ROOMALERT32E-MIB:

    walk:

      - 1.3.6.1.4.1.20916.1.8.1.1.1.1

   version: 1

    auth:

      # Community string is used with SNMP v1 and v2. Defaults to "public".

      community: public

#    lookups:

#      - source_indexes:

#        lookup:

#      - source_indexes:

#        lookup:

#    overrides:

I am getting the following message:

./generator generate

level=info ts=2020-07-19T06:27:33.832Z caller=net_snmp.go:142 msg="Loading MIBs" from=$HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp

level=warn ts=2020-07-19T06:27:34.004Z caller=main.go:120 msg="NetSNMP reported parse error(s)" errors=1

level=error ts=2020-07-19T06:27:34.185Z caller=main.go:130 msg="Error generating config netsnmp" err="error parsing yml config: yaml: line 5: did not find expected key"

I removed lookups and there are no indexes mentioned in this MIB for this device.

I can perform snmpwalk on this oid just fine:

snmpwalk -v 1 -c public 172.18.232.17 .1.3.6.1.4.1.20916.1.8.1.1.1.1

ROOMALERT32E-MIB::internal-tempf.0 = INTEGER: 7826

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[Linkoid01]

You are right, I had one space only on the line with the MIB name. Once I added one more space indent on that line, it generated properly.

Thank you very much for your help with this. Very much appreciated.