OID data retrieved as HEX with spaces, when the source is TEXT

[imailuk]

Using tools I can SNMPWalk an OID and get a TEXT response. Typically this is on our HP laser printers, Toner Model Name'.

When I use Ubuntu 20.04 with SNMP, the data is retrieved as HEX with spaces (e.g. A5 D5 2C etc.). Translated in a converter, the HEX is the text I'm after to appear in Zabbix (item data). Of course, Zabbix relies on SNMP on the host for the data. Pre-processing in Zabbix will allow conversion only to Decimal (numeric).

My question is.. Is there a way to pre-process or convert the HEX (with spaces) OID data in a Zabbix so that it is stored as TEXT (e.g. ASCII).

Any help appreciated.

[Markku]

Yes, you can use JavaScript preprocessing and write a script that converts the results.

Markku

[imailuk]

Now, if only I could code in JavaScript and figure out how to apply that in this context!? Appreciate this is the current correct answer, hopefully the Devs will add in a more friendly 'option' along with the other pre-processing options. Many Thanks.

[Markku]

Yes, you can use JavaScript preprocessing and write a script that converts the results.

Markku

[imailuk]

Now, if only I could code in JavaScript and figure out how to apply that in this context!? Appreciate this is the current correct answer, hopefully the Devs will add in a more friendly 'option' along with the other pre-processing options. Many Thanks.

[Hamardaban]

It might be interesting to take a look at this

https://www.zabbix.com/forum/in-russian/442231-snmp-string-как-hex

[imailuk]

Thankyou for the pointer, can't translate the page from Russian, but the code looks interesting - I'm not a JavaScript coder, so this will be a huge endeavour for me - will likely just leave it until the Devs pick up on this and implement Hex to ASCII in pre-procesing as an option (if they do). Many Thanks.