What does “ :: ” mean in my connections ? (“TCP local address :: port 49157”)

Question

It says:

TCP local address :: port 49157
remote port N/A etc.
status listen

There are several connections listed under svchost.exe, services.exe, Issas.exe, wininit.exe, system. I have no clue what that is telling me. Is it some kind of stealth Trojan type port to "listen"?

Answer 1

:: is the indicator for an IPv6 address equivalent to 0:0:0:0:0:0:0:0.

So, it's a port listening on any local configured IPv6 address.