[asterisk-users] NAT solutions

[Ken Williams]

Asterisk1 <--> NAT1 --- { Internet } --- NAT2 <--> Asterisk2 is one of
the easiest configs to put together.  Works extremely well and requires
opening a single port on each NAT.
 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Yuan LIU
Sent: Thursday, January 25, 2007 11:19 PM
To: asterisk-users at lists.digium.com
Subject: Re: [asterisk-users] NAT solutions

>From: Brad Templeton <brad+aster at templetons.com>
> > I have a really dumb question.  It appears that Yahoo, MSN, AIM, you
>name
> > them, they don't have a NAT problem, and some use SIP.  I don't 
> > think
>they
> > all stay in voice path, either.  What takes?
>
>When you control both ends of the path, you can eliminate all NAT 
>problems.  Skype also deals almost perfectly with NAT (by using
>other nodes as relays if necessary) as does IAX.   SIP was designed

Thanks for this information.  Does this mean two IAX boxes can talk
behind their respective NAT's (without any server sitting in voice
path)?  I'm imagining this:

Asterisk1 <--> NAT1 --- { Internet } --- NAT2 <--> Asterisk2

If Asterisk1 can talk to Asterisk2 at trunk level, I'll be happy.