[asterisk-dev] bug or feature (use From: instead of Digest username to match INVITE) ?

[Rich Adamson]

>>> How do you fix it here, though?
>>
>> as suggested in the earlier thread, one workaround was to use 
>> different namespaces for the SIP devices and for extensions. a 
>> suggestion was to use the mac addr for the SIP device, thus creating 
>> two namespaces.
>>
>> another, which is where i think luigi and i agree on, is to use the 
>> digest username for the authentication between two asterisks over a 
>> SIP trunk instead of the From: header.
>>
>> -
> I agree too, and that's why we have realm based auth - which only solves 
> one side of the problem. In codename-pineapple, there's
> going to be a "trunk" definition that works on a combination of SIP 
> domains and ACLs. Authentication will be handled by realm.
> 
> What I'm worried about is trying to fix it in the current code, since it 
> will change quite a few things that are needed today,
> and break backwards compatibility. I've tried, but failed, in chan_sip2 
> :-) and that was when I was beginning to start thinking
> of chan_sip3, that will break backwards compatibility :-)

But, didn't we run across that same compatibiliity issue with iax and 
iax2, letting both peacefully exist until some predetermined date when 
iax was remove?

Wouldn't the same approach work with sip3?

R.