I'm starting to hit a issue with createing overlaping docker netwroks as I want ipv6 and Ipv4.

as the host network won't faciltate this.. and due to at boot and webui docker setting for ipvlan or macvlan..

example:
 

root@Docker:~# docker inspect host
[
    {
        "Name": "host",
        "Id": 
        "Created": 
        "Scope": "local",
        "Driver": "host",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": null
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },

the enable ipv6 otpion I want enabled!

to do that on a mutable os at boot I would need to edt or make my own docker netwroks...
Per example:

Edit /etc/docker/daemon.json (create the file if it doesn't exist).

Add the following content (adjust as needed):

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

 

Which is not easily done vcia the web ui or presitent across boots...

Simlilarly with macvlan... ipv6 is alos disabled...

 

root@Docker:~# docker network create \
  --driver macvlan \
  --subnet=192.168.2.0/24 \
  --subnet=fd00::/64 \
  --gateway=192.168.2.1 \
  --gateway=fd00::1 \
  -o parent=br0 \
  my_macvlan_net
Error response from daemon: invalid pool request: Pool overlaps with other one on this address space
root@Docker:~#

Due to unraids webui Docker settings.. I would like to see a custom/no docekr network so a advance user can create there own docker network for ipv6 support...

Edited November 28, 2025Nov 28 by bmartino1

to be clear I want a docker option to stop the creation of unriads control and use over creating the custom br0 network... i would rather have preserve user defined and let teh user defiune them!!!