# Logstash, SNMP don't receive traps
**URL:** https://discuss.elastic.co/t/logstash-snmp-dont-receive-traps/48429
**Category:** Logstash
**Created:** [April 26, 2016, 12:42pm UTC](https://discuss.elastic.co/t/logstash-snmp-dont-receive-traps/48429 "2016-04-26T12:42:26Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Vincent\_Vost](https://discuss.elastic.co/u/Vincent_Vost)
#### Post date: [April 26, 2016, 12:42pm UTC](https://discuss.elastic.co/t/logstash-snmp-dont-receive-traps/48429/1 "2016-04-26T12:42:26Z")
Hi everybody 🙂
I try to use SNMP with logstash, but my configuration or something is wrong and I don't find any information who can help me ☹
First : I don't understand how it should work,
snmptrapd must run or not ? Or Logstash work like snmptrapd and receive trap on the port 162?
I have try this configuration :
> input {
> snmptrap {
> port =\> 162
> community =\> 'public'
> type =\> 'snmptrap'
> yamlmibdir =\> "/opt/logstash/vendor/bundle/jruby/1.9/gems/snmp-1.2.0/data/ruby/snmp/mibs"
> }
> }
> output {
> stdout {
> codec =\> rubydebug
> }
> }
I have try to use it without port, community option but nothing change.
Tcpdump recive the trap
I have prepare some enterprise mib in yaml format for the next step
Thank if someone can help me a little
Vost
---
### Author:  [@Vincent\_Vost](https://discuss.elastic.co/u/Vincent_Vost)
#### Post date: [April 27, 2016, 12:29pm UTC](https://discuss.elastic.co/t/logstash-snmp-dont-receive-traps/48429/2 "2016-04-27T12:29:02Z")
Someone have an idea ?
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 5:00am UTC](https://discuss.elastic.co/t/logstash-snmp-dont-receive-traps/48429/3 "2017-07-06T05:00:19Z")