What does "[::]" in Netstat on Windows indicate? [closed]

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In connection with this [Why am I getting, "Unable to connect to the remote server"? problem, I ran "Netstat -na" in cmd.exe, to make sure the server that is running is really seen as actually running.

I see an entry with the port number in it:

[::]:28642      [::]:0      LISTENING

...but what is this "[::]:" jazz?

Do these Picaso-esque dominos indicate a problem, or...???

Answer 1

It's a non-routable IPv6 meta-address that specifies "all interfaces", similar to 0.0.0.0 in IPv4. In this case it's listening on all registered local IPv6 addresses on port 28642.