[AusNOG] IPv4 Exhaustion
mmc at internode.com.au
Fri Aug 1 15:48:52 EST 2008
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
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
>>> 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
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