# Logstash filter check value without fields

**URL:** <https://discuss.elastic.co/t/logstash-filter-check-value-without-fields/282598>\
**Category:** Logstash\
**Created:** [August 26, 2021, 3:27pm UTC](https://discuss.elastic.co/t/logstash-filter-check-value-without-fields/282598 "2021-08-26T15:27:24Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![dfoot](https://avatars.discourse-cdn.com/v4/letter/d/ea5d25/32.png) [@dfoot](https://discuss.elastic.co/u/dfoot)\
**Post date:** [August 26, 2021, 3:27pm UTC](https://discuss.elastic.co/t/logstash-filter-check-value-without-fields/282598/1 "2021-08-26T15:27:24Z")

</div>

Below document there are 3 values without fields I need add logstash configuration to pick up 3 values, can you help please? maybe start with loglevel as DEBUG and error N13 to confirm before pick up 3 values below.

70-B3-D5-1F-30-00-A0-23 as A id  
B8-79-7E-00-00-47-72-70 as B id  
6.3.4 as C number

2021-07-07 14:38:56.737 [audit\_xxxxxxx-nn] DEBUG x.x.x.x.x.x.x. AuditEventSender - Message: "01","02","20210707T143856","70-B3-D5-1F-30-00-A0-23",nnnn,"","B8-79-7E-00-00-47-72-70","","","","","","","TEST1 TEST2","6.3.4","xxxxxx installation nnnnnn was parked because of the error N13 - Error N13 - Failure to receive response from Device for current device Step 4 in xxxxx installation 3,027,689"  
, hostname=xx-xxxxx-xxxxnn.xxx.local

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 23, 2021, 3:28pm UTC](https://discuss.elastic.co/t/logstash-filter-check-value-without-fields/282598/2 "2021-09-23T15:28:13Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.