Specifying port number as part of IPv6 address

Enclose IPv6 address with square brackets followed by colon and the port. For example to check if port 80 is open on 2607:f8b0:4000:811::2004, do:

c:\> psping -6 [2607:f8b0:4000:811::2004]:80

Reference(s):
http://stackoverflow.com/questions/186829/how-do-ports-work-with-ipv6