When installing solr with the install script (documentation https://cwiki.apache.org/confluence/display/solr/Taking+Solr+to+Production) the process only listens on an IPv4 socket. > *8983
When manually installing with the same software set but running the software via a tomcat startup it does listen on ipv4 and IPv6 sockets. > :::8080
I do realize that I have different ports, it's about 2 servers. I intentionally did not change port of the IPv6 only server to be exact and presize and maybe running it via Tomcat affects this.