# Winlogbeat Original Field remove

**URL:** <https://discuss.elastic.co/t/winlogbeat-original-field-remove/278768>\
**Category:** Beats\
**Tags:** winlogbeat\
**Created:** [July 15, 2021, 11:07am UTC](https://discuss.elastic.co/t/winlogbeat-original-field-remove/278768 "2021-07-15T11:07:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Frack](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/frack/32/88134_2.png) [@Frack](https://discuss.elastic.co/u/Frack)\
**Post date:** [July 15, 2021, 11:07am UTC](https://discuss.elastic.co/t/winlogbeat-original-field-remove/278768/1 "2021-07-15T11:07:23Z")

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Hi,  
Why some field are remove when convert to ECS ?  
For exemple DestinationIsIpv6 from sysmon:

- 'winlog.event\_data.SourceIsIpv6' is remove after create 'network.type'.

As I have to work with beat agent and industrial system (no beat allowed) I have to write 2 query to find the same information ☹.

Thanks

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<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:** [August 12, 2021, 1:08pm UTC](https://discuss.elastic.co/t/winlogbeat-original-field-remove/278768/2 "2021-08-12T13:08:06Z")

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