# Elasticsearch version 2.x can not start in docker container but 1.7.3 starts with same config

**URL:** <https://discuss.elastic.co/t/elasticsearch-version-2-x-can-not-start-in-docker-container-but-1-7-3-starts-with-same-config/47141>\
**Category:** Elasticsearch\
**Created:** [April 12, 2016, 3:37pm UTC](https://discuss.elastic.co/t/elasticsearch-version-2-x-can-not-start-in-docker-container-but-1-7-3-starts-with-same-config/47141 "2016-04-12T15:37:24Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![abhijat](https://avatars.discourse-cdn.com/v4/letter/a/9de0a6/32.png) [@abhijat](https://discuss.elastic.co/u/abhijat)\
**Post date:** [April 13, 2016, 5:29pm UTC](https://discuss.elastic.co/t/elasticsearch-version-2-x-can-not-start-in-docker-container-but-1-7-3-starts-with-same-config/47141/6 "2016-04-13T17:29:34Z")

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> [@ajay\_bh111](#):
>
> discovery.zen.ping.unicast.hosts: ["${ES\_ENV\_M1}:9300","${ES\_ENV\_M2}:9300","${ES\_ENV\_M3}:9300"]

What is the IP address used for ES\_ENV\_M1, ES\_ENV\_M3 and ES\_ENV\_M3? It should be the IP address of the VMs on which the ES containers are running...

Also, cali0, should be the NIC of the VM on which the container is running.

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