You don't need the Prometheus server inside the network that has SNMP
devices, only the snmp_exporter.

One simple deployment option would be to put the snmp_exporter behind the
firewall with PushProx.

https://github.com/RobustPerception/PushProx

On Thu, May 14, 2020 at 7:43 AM Brian Candler <[email protected]> wrote:

> Traps are logs (events), not metrics (counters/gauges).  snmp_exporter
> don't handle SNMP traps:
> https://github.com/prometheus/snmp_exporter/issues/69
>
> You could write a custom exporter which counts SNMP traps, or you could
> use a trap receiver which writes logs, and a tool like mtail or
> grok_exporter to count particular patterns.  However, I strongly recommend
> you don't bother.  SNMP traps have very little useful information.
>
> Most people configure their networks to allow SNMP polling from their
> monitoring station to their devices.  If you use SNMPv3 this can be done
> securely (with strong authentication and encryption).  If the problem is
> that your prometheus server is outside your firewall, and you won't
> configure your firewall to allow SNMP queries inbound, then the easy
> solution is to run another prometheus server inside your firewall.
>
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