Help Center/ Elastic Load Balance/ FAQs/ ELB Functionality/ Does ELB Support IPv6 Networks?
Updated on 2025-06-30 GMT+08:00

Does ELB Support IPv6 Networks?

Shared load balancers support only IPv4 networks. Dedicated load balancers support both IPv4 and IPv6 networks.

When a client communicates with a dedicated network load balancer using an IPv6 address, the load balancer must communicate with backend servers using an IPv6 address. When a client communicates with an application dedicated load balancer using an IPv6 address, the load balancer must communicate with backend servers using an IPv4 address.

  • If IPv6 is not enabled for the backend subnet you select when creating a dedicated load balancer, the load balancer cannot route IPv6 requests.
  • If you need IPv6 networks, you must select a backend subnet with IPv6 enabled for your dedicated load balancer.