# Will es nodes connect with each other in 9200?

**URL:** <https://discuss.elastic.co/t/will-es-nodes-connect-with-each-other-in-9200/300421>\
**Category:** Elasticsearch\
**Created:** [March 23, 2022, 8:30am UTC](https://discuss.elastic.co/t/will-es-nodes-connect-with-each-other-in-9200/300421 "2022-03-23T08:30:48Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![JohnPhilip](https://avatars.discourse-cdn.com/v4/letter/j/57b2e6/32.png) [@JohnPhilip](https://discuss.elastic.co/u/JohnPhilip)\
**Post date:** [March 23, 2022, 9:53am UTC](https://discuss.elastic.co/t/will-es-nodes-connect-with-each-other-in-9200/300421/2 "2022-03-23T09:53:26Z")

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After use tcpdump I found it's monitoring data(I also deploy a kibana in my environment), and I found that there already described that [What are ports 9200 and 9300 used for?](https://discuss.elastic.co/t/what-are-ports-9200-and-9300-used-for/238578)

> - **Port 9200** is used for all API calls over HTTP. This includes search and aggregations, monitoring and anything else that uses a HTTP request. All client libraries will use this port to talk to Elasticsearch

So it is the monitoring request cause this.  
Sorry for disturbance.

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