[asterisk-users] RTP port ranges

[A J Stiles]

On Friday 13 September 2013, Jonas Kellens wrote:
> On 09/13/2013 11:41 AM, Andrew Colin wrote:
> > Normally you should open ports 10000-20000 udp
> > 
> > On 9/13/2013 11:37 AM, Jonas Kellens wrote:
> >> I now see that an IP-address gets blocked by my firewall because
> >> there are packets coming onto port 11955.
> 
> Why do I need such a big range ? That's like for 250 concurrent calls !

Having a port open really is not a big deal, unless there's a daemon listening 
on it.

In the Windows world, where you usually don't get the Source Code, you never 
know what is running on your computer; in which case, you are never sure that 
there isn't a daemon listening on a particular port number, so it is wise in 
that case not to leave ports open unnecessarily.  (Though not half as wise as 
just not running un-audited software in the first place .....)

But this is the Open Source world, and we have the advantage of knowing 
exactly what is running our computers.  Open ports going nowhere simply are 
not a security concern this side of the fence.

-- 
AJS

Answers come *after* questions.