netstat output help?

[Hondy]

Hi

When I do a netstat -an the I get various source addresses like you might expect on a cluster system. But can anyone tell me what [::] means as the source?

output similar to:

TCP 192.168.0.1:139 0.0.0.0 Listening(e.g NIC1)
TCP 192.168.0.21:445 0.0.0.0 Listening (e.g. Cluster IP)
TCP [::]:10000 0.0.0.0 Listening (What is this??)

The 10000 port listening is backup exec, thats fine - but what does the [::] mean, does it mean on all IPs or something?

Thanks