This solution

https://access.redhat.com/solutions/18664

says that one must pass the bind address with the start up command. And YES that works. But because neither adding

{{{{<interface name="public">
<inet-address value="${jboss.bind.address:<IP>}"/>}}}}
{}{{ </interface>}}

to standalone.xml

nor passing -Djboss.bind.address={{<IP>}} in the Eclipse Launch Configuration (JAVA Options) works, I'm obviously not able to start the server with a specific bind address from Eclipse. It's only running on localhost and 127.0.0.1.

This is annoying for example during the development of a mobile app. The server simply can't be reached when started with Eclipse.