# The definition of grok pattern CISCO\_REASON

**URL:** https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373
**Category:** Logstash
**Created:** [June 22, 2017, 12:47am UTC](https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373 "2017-06-22T00:47:25Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Shuxin\_Lin](https://avatars.discourse-cdn.com/v4/letter/s/da6949/32.png) [@Shuxin\_Lin](https://discuss.elastic.co/u/Shuxin_Lin)
#### Post date: [June 22, 2017, 12:47am UTC](https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373/1 "2017-06-22T00:47:25Z")

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My log entry is like:

```auto
2017-05-16T03:48:19.191162+00:00 ip-10-133-8-70 tcp[18916]: LOG Statistics [Sender] ....

```

In this example, "LOG Statitics" can be extracted by pre-defined pattern: CISCO\_REASON

But I cannot find any definition of CISCO\_REASON.

Any help is appreciated.

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<div class="post-metadata">

### Author: ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [June 22, 2017, 5:40am UTC](https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373/2 "2017-06-22T05:40:22Z")

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Here it is:

> <https://github.com/logstash-plugins/logstash-patterns-core/blob/v4.1.0/patterns/firewalls#L10>

If you don't have v4.1.0 of the logstash-patterns-core plugin you'll have to adjust the URL somewhat.

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<div class="post-metadata">

### Author: ![Shuxin\_Lin](https://avatars.discourse-cdn.com/v4/letter/s/da6949/32.png) [@Shuxin\_Lin](https://discuss.elastic.co/u/Shuxin_Lin)
#### Post date: [June 22, 2017, 5:49pm UTC](https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373/3 "2017-06-22T17:49:59Z")

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Thank you!

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 20, 2017, 5:50pm UTC](https://discuss.elastic.co/t/the-definition-of-grok-pattern-cisco-reason/90373/4 "2017-07-20T17:50:06Z")

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