On Mar 24, 2004, at 7:26 PM, Adam Hart wrote:


Robert Hajime Lanning wrote:

<quote who="Adam Hart">

I also like to see two
people behind the same nat being able to communicate directly (without
requiring pin-wheeling). Ie The client attaches their private ip to the
register packet, which is used when client A & B's public ips match.



192.168.1.0/24 -- NAT-BOX -- Internet -- NAT-BOX -- 192.168.1.0/24 | | | IAX phone Asterisk-Box IAX phone

umm... I would suggest the default setting to be off, as the above topology
would be very common.



from my post: "which is used when client A & B's public ips match." meaning in this situation both clients would have different public IPs and it wouldn't be used.

I'd say that if you wanted to do that, it might make sense to try it even if the "public IPs" don't match.


With the current IAX2 transfer exchange, all that would happen is that A would try sending a packet or two to to B's IP address [which would be another host on A's network], which would either go to a dead host and get no response, or an ICMP port unreachable would come back. In either case, the transfer would just not happen, and it's not like a couple of packets sent to a local host would hurt anything.

OTOH, the only issue I could see with this is that this would then expose your private numbering to the outside internet; i.e. a privacy issue. I don't think it's a big deal, but someone might not like it.

-SteveK

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