Forge 1.9.4 start with ipv6


I have an old map with Forge 1.6, and it works correctly.

I created a new server with Forge 1.9.4, and it always starts with an IPv6 address.

I have disabled IPv6 on my Debian 11, but I can’t get an IPv4 address.

Someone have test forge 1.9 ?

hello no one have one idea ?