In our polato firewall snmp trap version upgraded from v2 To V3 . we are using privacy protocol: AES 256 but in our checkmk dashboard, show AES 128 in the option., kindly suggest how to enable firewall service alert

[ArunachalamN]

**CMK version:**2.1.0p10.cre;2.1.0p10;cre;0
**OS version:**CentOS Linux release 7.9.2009 (Core)

**Error message: **Invalid SNMP auth protocol

Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins)

[Heavy]

In the current Checkmk stable version 2.2.0p17, you can use AES-256 as Privacy Protocol in the Event console settings.

I cannot remember exactly when this was introduced, but I believe that Checkmk 2.1 did support only AES-128. So you might need to update to the latest version.

[ArunachalamN]

kindly suggestion ., how to update checkmk version From 2.1 To 2.2

[Heavy]

See the official documentation on updating:

Update to version 2.2.0

[ArunachalamN]

Thanks for your responses.

[ArunachalamN]

@Heavy

2.2.0p17

currently we configured "OMD - Open Monitoring Distribution Version 2.2.0p17.cre
".however AES 256 not available., kindly find attached screenshot for your reference.
kindly provide solution for this.

[Heavy]

If I understood it correctly, your original question was about SNMP traps.

For configuring the trap receiver, go to Setup → Event Console configuration → Credentials for processing SNMP traps. Here it is possible to configure AES-256 as privacy protocol. See the example: