Comment 6 for bug 799141

I hope the currports part is clear at least. What I am asking you to do with the IPv6 part is this:
Make a server and wait until it disappears from the lobby and doesn't react to a normal manual connection attempt any more. Then start a second client on the same PC, click "Join (manual)" and enter ::1 as the IP address instead of the default (127.0.0.1).