Starting with 5.3 Platform version, Jelastic supports assigning multiple Public IP addresses (of both IPv4 and IPv6 revisions) to a single container. Herewith, the assigned IPs could be either of one of the versions or both of them simultaneously.
For example, if hosting several web-sites on a single node, the multi-IP option allows to handle them as separate production-ready services due to the ability to apply dedicated custom domain name and SSL certificate to each of them. Also, this option can be helpful for operating network appliances (e.g. load balancers) with multiple IP addresses for each network.
You can assign multiple IP addresses through your Jelastic dashboard by means of the appropriate spinners at topology wizard when either creating an environment or changing its topology.
Here, you can select or enter the required number of addresses of both types through the appropriate Public IPv4 and Public IPv6 boxes. If meeting the limits, please, contact your hosting provider to increase the available addresses count.