# Cross Cluster with 9300 Port
**URL:** https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818
**Category:** Elasticsearch
**Created:** [August 5, 2020, 7:44am UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818 "2020-08-05T07:44:48Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@3c3m](https://discuss.elastic.co/u/3c3m)
#### Post date: [August 5, 2020, 7:44am UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818/1 "2020-08-05T07:44:48Z")
Hi,
In a scenario, I have 3 different clusters.
Do each cluster added to Remote Clusters have to see each other on port 9300?
Thanks,
Ecem
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [August 9, 2020, 11:07pm UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818/2 "2020-08-09T23:07:17Z")
Are you talking about cross cluster search here?
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### Author:  [@3c3m](https://discuss.elastic.co/u/3c3m)
#### Post date: [August 10, 2020, 8:22am UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818/3 "2020-08-10T08:22:09Z")
Yes, I'm talking about cross cluster.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [August 10, 2020, 9:17pm UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818/4 "2020-08-10T21:17:25Z")
Yes, it requires access to port 9300 between clusters.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 7, 2020, 9:17pm UTC](https://discuss.elastic.co/t/cross-cluster-with-9300-port/243818/5 "2020-09-07T21:17:40Z")
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