[Interest] QTcpSocket::connectToHost very slow with IPv6

[Jb Hubert]

On Fri, 13 Feb 2015 09:34:22 +0100
Etienne Sandré-Chardonnal <etienne.sandre at m4x.org> wrote:

> Hi Thiago,
> 
> Windows ping -6 to the IPv6 address has no delay.
> The DNS issue was my first guess, but now I specifically resolve the
> name with QHostInfo,  which takes no time, and select either the
> resulting v4 or v6 address (it returns both) to give it to
> connectToHost
> 
> Last time I did packet sniffing was in 2003 at university. What is
> the best windows 7 tool for doing that? I have no "junk" machine for
> testing so it should be cleanly removable!

Wireshark is probably the simplest tool for your purpose.

> 
> Thanks,
> 
> Etienne