From: "Kevin P. Fleming" <[EMAIL PROTECTED]> Date: Fri, 18 Feb 2005 09:04:35 -0700
To:
Asterisk Users Mailing List - Non-Commercial Discussion <[email protected]>
Olle E. Johansson wrote:
Actually, we could solve Matthew's problem by checking the IP addresses
against the localnet setting and checking if both phones are on the same side. If both are within the localnet, we can reinvite. If both are on public side, we can reinvite. But if one is localnet and one is public, we could automagitically disable reinvite.
Yes, that is a start. As long as you are comparing the "perceived" addresses (which I know you would be, I'm just clarifying for others who are reading this thread), that will work, because it won't matter what private addresses the remote peers may be using behind their NATs.
It will still break in bizarre routing scenarios, but people who build those networks are used to dealing with stuff like that.
This should really be the default behaviour if canreinvite=yes and localnet is set to something.
Agreed.
Kevin,
what about letting this logic be followed by a dialplan macro that gets called to make the decision. May sound weird but we have a 'network-id' attached to each sip-user. That network-id contains the public fixed-ip of the users network plus a unique name. If the network id's is matching and both users are on their 'home-network' then we do re-invite. This allows us to deal with special cases where people are behind double/triple nat a.s.o. . In other words it allows the Asterisk user to overrule the default behavier. It's allows us (as an ITSP) todo a safe re-invites on known networks to save on customers (and our) bandwith. Our hack is really ugly and it would be a like a dream to have this stuff in CVS.
Freddi
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