On 01/28/2017 12:13 PM, Stuart Henderson wrote:
On 2017-01-27, lilit-aibolit<lilit-aibo...@mail.ru> wrote:
Hi list, I have an office behind NAT with PF.
There are mostly Win7 workstations with
different Skype versions but mostly with
7.3x or the latest versions.
Two days ago any skype call started to drop
after few seconds without any voice from
opposite side.
I got skype support which remotely looked
at affected machines and after a while he
resolved this by installing 7.15 version.
However there is no trouble with skype
by using it from other places of from personal
hotspot 3G connection so I suspect here
maybe be an issue with PF which somehow
doesn't met to how last skype versions work.
Any thoughts about that?
They might be sending packets which are passed by some NAT devices
but not by PF. Use "log" on your block rules and watch pflog0, see if
something is being blocked.
tcpdump -n -e -i pflog0
.
Hi and thanks for your answer.
It turned out that the latest skype version
is trying to reach host in 104.44.200.x
network by using UDP 3480 port which was
blocked in my pf.conf.
Above network belongs to Microsoft.
So this could be used as trick to block
voice in skype)
