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Docker-Docs/config/daemon/ipv6.md

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title description keywords redirect_from
Enable IPv6 support How to enable IPv6 support in the Docker daemon daemon, network, networking, ipv6
/engine/userguide/networking/default_network/ipv6/

Before you can use IPv6 in Docker containers or swarm services, you need to enable IPv6 support in the Docker daemon. Afterward, you can choose to use either IPv4 or IPv6 (or both) with any container, service, or network.

Note: IPv6 networking is only supported on Docker daemons running on Linux hosts.

  1. Edit /etc/docker/daemon.json, set the ipv6 key to true and the fixed-cidr-v6 key to your IPv6 subnet. In this example we are setting it to 2001:db8:1::/64.

    {
  "ipv6": true,
  "fixed-cidr-v6": "2001:db8:1::/64"
}

    Save the file.

  2. Reload the Docker configuration file.

    $ systemctl reload docker

You can now create networks with the --ipv6 flag and assign containers IPv6 addresses using the --ip6 flag.

Next steps