MR28 wrong SNMP string sysDescr

[braham2019]

I use LibreNMS for SNMP. All of my AP show up correctly and are recognized by LibreNMS.

.1.3.6.1.2.1.1.1.0 = STRING: Meraki MR76 Cloud Managed AP

However, the MR28 has a "wrong" string (the "=" is shown in the name), so that LibreNMS does not recognize this as a Meraki AP.

.1.3.6.1.2.1.1.1.0 = STRING: =Meraki MR28 Cloud Managed AP

Is there a way to override this ?

[alemabrahao]

Have you checked the librenms documentation?

[braham2019]

The problem is clearly with the Meraki AP having incorrect SNMP settings. See below

snmpwalk -v 2c -c public 192.168.0.200 iso.3.6.1.2.1.1.1.0
iso.3.6.1.2.1.1.1.0 = STRING: "=Meraki MR28 Cloud Managed AP"

snmpwalk -v 2c -c public 192.168.0.155 iso.3.6.1.2.1.1.1.0
iso.3.6.1.2.1.1.1.0 = STRING: "Meraki MR33 Cloud Managed AP"

snmpwalk -v 2c -c public 192.168.0.160 iso.3.6.1.2.1.1.1.0
iso.3.6.1.2.1.1.1.0 = STRING: "Meraki MR76 Cloud Managed AP"

snmpwalk -v 2c -c public 192.168.0.167 iso.3.6.1.2.1.1.1.0
iso.3.6.1.2.1.1.1.0 = STRING: "Meraki MR33 Cloud Managed AP"

[PhilipDAth · Accepted solution]

You'll need to open a support case fo this bug - but it could take a VERY long time to get fixed.

[braham2019]

After some back and forth with support and providing the necessary proof of the difference in OID string in comparison to other MR AP, I got the reply "I have reported this issue to our development team and they are looking into resolving it. I will keep your posted once a fix is released. "

Let's see when that happens...

[Tozz]

Since removing an erroneous sign in a string is apparently a >6 months task for Cisco, LibreNMS has been patched to resolve this issue:

https://github.com/librenms/librenms/pull/17065