When I chose 0.0.0.0 as listening address, Overture listens on [::] instead:
user@localhost:~$ netstat -nlp | grep overture
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp6 0 0 :::1053 :::* LISTEN 38734/overture
udp6 0 0 :::1053 :::* 38734/overture
When I chose 0.0.0.0 as listening address, Overture listens on [::] instead:
My configuration: