Ho provato alcuni modi, ma sembrano arricciare confusione.
root@testt:~# curl localhost:8080
<h1>Hello world!</h1>
<p>Boom Bam Splat</p>
root@testt:~# curl ::1:8080
curl: (3) IPv6 numerical address used in URL without brackets
root@testt:~# curl [::1]:8080
curl: (3) [globbing] bad range specification in column 2