address="::1" on the tomcat10 connector returns 503

When having in server.xml
+++
<Connector protocol="AJP/1.3"
port="8009"
address="::1"
secret="adelina"
redirectPort="8443" />
+++
The mod_cluster_manager reports Status: OK but any request to httpd return 503.
Using mod_cluster master and mod_proxy_cluster master (and httpd trunk).