How to configure app to have ipv6?

iX confirmed that docker doesn’t officially support IPv6 in TrueNAS on a recent ticket about routable IPv6

https://ixsystems.atlassian.net/jira/software/c/projects/NAS/issues/NAS-132113?filter=allissues&jql=project%20%3D%20"NAS"%20AND%20textfields%20~%20"IPv6"%20ORDER%20BY%20created%20DESC

Looking on my side, I gave my server a IPv6 Address but on Docker Settings I can’t add a IPv6 Subnet to my docker settings, and only used the IPv4 address when the app started.

Though someone may know a bit further, I don’t normally use IPv6 on an internal network so don’t mess around much with it