# Add\_tag failing

**URL:** <https://discuss.elastic.co/t/add-tag-failing/46151>\
**Category:** Logstash\
**Created:** [April 3, 2016, 5:54am UTC](https://discuss.elastic.co/t/add-tag-failing/46151 "2016-04-03T05:54:25Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![brain](https://avatars.discourse-cdn.com/v4/letter/b/439d5e/32.png) [@brain](https://discuss.elastic.co/u/brain)\
**Post date:** [April 3, 2016, 5:54am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/1 "2016-04-03T05:54:25Z")

</div>

i have the following in my config file, where i'm using the GeoIPASNum database to add the AS of an IP to its own field (asn\_id.orig\_h.number)

if [id.orig\_h] {  
geoip {  
database =\> "/opt/logstash/vendor/geoip/GeoIPASNum.dat"  
source =\> "id.orig\_h"  
target =\> "asn\_id.orig\_h"  
}  
mutate {  
add\_tag =\> ["%{asn\_id.orig\_h.number}"]  
}

the lookup is successful because I can see the fields in kibana/es, however its not adding the AS (eg: AS12345) and instead its adding %{asn\_id.orig\_h.number} as a string. i've also tried moving the mutate to a new section with something like:

if [asn\_id.orig\_h.number] {  
mutate {  
add\_tag =\> ["%{asn\_id.orig\_h.number}"]  
}

but that also fails. any ideas on how I can get this working?

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 3, 2016, 6:04am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/2 "2016-04-03T06:04:56Z")

</div>

Then does `asn_id.orig_h.number` exist in the document?

If it did/does, then this should also work and is cleaner;

```auto
geoip {
database => "/opt/logstash/vendor/geoip/GeoIPASNum.dat"
source => "id.orig_h"
target => "asn_id.orig_h"
add_tag => ["%{asn_id.orig_h.number}"]
}

```

---

<div class="post-metadata">

**Author:** ![brain](https://avatars.discourse-cdn.com/v4/letter/b/439d5e/32.png) [@brain](https://discuss.elastic.co/u/brain)\
**Post date:** [April 3, 2016, 6:51am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/3 "2016-04-03T06:51:40Z")

</div>

if i don't have the add\_tag statement, asn\_id.orig\_h.number exists as I would expect:

```
  "asn_id.resp_h": {
     "asn": "VeriSign Global Registry Services",
     "number": "AS26415"
  },

```

using your config, I end up with:

```
  "asn_id.resp_h": {
     "asn": "VeriSign Global Registry Services",
     "number": "AS26415"
  },
  "tags": [
     "%{asn_id.resp_h.number}"
  ],
```

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 3, 2016, 7:05am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/4 "2016-04-03T07:05:48Z")

</div>

You may need to use `%[asn_id.orig_h][number]` as it's a nested field.

---

<div class="post-metadata">

**Author:** ![brain](https://avatars.discourse-cdn.com/v4/letter/b/439d5e/32.png) [@brain](https://discuss.elastic.co/u/brain)\
**Post date:** [April 3, 2016, 7:19am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/5 "2016-04-03T07:19:38Z")

</div>

same thing, using;

add\_tag =\> ["%[asn\_id.orig\_h][number]" ]

just displays %[asn\_id.resp\_h][number] as the tag

---

<div class="post-metadata">

**Author:** ![brain](https://avatars.discourse-cdn.com/v4/letter/b/439d5e/32.png) [@brain](https://discuss.elastic.co/u/brain)\
**Post date:** [April 3, 2016, 7:26am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/6 "2016-04-03T07:26:12Z")

</div>

a-ha. looks like;

add\_tag =\> ["%{[asn\_id.resp\_h][number]}" ]

was the answer

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 3, 2016, 7:35am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/7 "2016-04-03T07:35:21Z")

</div>

Ohh, so close 😉

---

<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:** [July 6, 2017, 5:04am UTC](https://discuss.elastic.co/t/add-tag-failing/46151/8 "2017-07-06T05:04:11Z")

</div>

Closed on July 6, 2017, 5:04am UTC