[asterisk-users] Why Nat=yes Nat=no Option?

[Alex Balashov]

You're right, all that verbose book-learnin' and complex protocol 
implementations definitely don't belong together.

Steve Totaro wrote:

> What is Asterisk designed to be?  A PBX. (yes that is a period)

That question will fetch many answers depending on who you're talking 
to.  It is used for a great many things in larger systems.  I think you 
know that.

But, even assuming a straightforward PBX application is all it's good 
for, it still participates in the model outlined by the RFC.  So, once 
again, it's important to understand the model holistically before you 
change how and when it's followed.

I have a customer who uses Asterisk as a PBX but with an outboard 
registrar.  Your recommended behaviour would break the platform unless 
they took the time to school themselves on the 'nat' option, why 
Asterisk does funky and nonstandard things with peer reachability by 
default, and changed all their peers to nat=no.

People use Asterisk's SIP stack because it's a SIP stack out of the box, 
not a convenient-for-Steve-out-of-the-box or 
tailored-to-Alex-out-of-the-box stack.

-- Alex

-- 
Alex Balashov
Evariste Systems
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