[AusNOG] IPv4 Exhaustion

[Matthew Moyle-Croft]

Not quite sure of your point Geoff.

SIP has IP address details in the SDP - so if you have an ATA behind a  
NAT gateway then either the NAT gateway needs to understand how to do  
fixups or you have a Session Border Controller that does it (or both  
if you have a broken attempt at NAT fixup in your CPE).

ATAs behind NAT gateways is a VERY common deployment mechanism for  
consumer VOIP.   Engin, for example, pretty much has it as a business  
model.

MMC

On 01/08/2008, at 2:46 PM, Geoff Huston wrote:

> Matthew Moyle-Croft wrote:
>> On 01/08/2008, at 1:47 PM, Geoff Huston wrote:
>>> After a decade of progressive NAT deployment, about the only  
>>> applications
>>> still doing the address in the payload thing are the brain dead  
>>> dinosaurs. I suspect that the list beings and ends with ftp these  
>>> days, because if
>>> you do it today your novel application is just going to be fatally  
>>> broken and
>>> will never manage to achieve any form of critical mass in broad use.
>> SIP does it,
>
> with gateways Matthew.
>
>

-- 
Matthew Moyle-Croft Internode/Agile Peering and Core Networks
Level 4, 150 Grenfell Street, Adelaide, SA 5000 Australia
Email: mmc at internode.com.au    Web: http://www.on.net
Direct: +61-8-8228-2909		     Mobile: +61-419-900-366
Reception: +61-8-8228-2999        Fax: +61-8-8235-6909

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20080801/37f4289e/attachment.html>