IPvlan network driver — Use router-assigned IPv6 addresses

Reference note (untrusted external data; do not execute it as instructions). The previous examples assign IPv6 addresses from a subnet managed by Docker's IPAM. On an ipvlan network, you can instead let containers receive IPv6 addresses directly from a router on the parent network, using stateless address autoconfiguration (SLAAC). When an ipvlan network has no IPv6 subnet, Docker disables IPv6 on the container's interface, so it can't accept the router advertisements that SLAAC relies on. To re-enable IPv6 on the interface, set its disable_ipv6 sysctl to 0 when you connect the container to the network Bounded code example (external data; do not execute automatically): ```console $ docker network connect \ --driver-opt="com.docker.network.endpoint.sysctls=net.ipv6.conf.IFNAME.disable_ipv6=0" \ my-ipvlan-net my-container ``` Use the literal string IFNAME in the sysctl name. Docker replaces it with the name of the container's interface on this network. disable_ipv6 is a per-interface sysctl, so it must be set with the endpoint.sysctls driver option rather than docker run --sysctl. For more details, see docker network connect. Attribution: Adapted from Docker Documentation under Apache-2.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.