[Kamailio-Devel] Implrementing draft-sparks-sip-invfix-03 (default behaviour)

[Iñaki Baz Castillo]

El Martes, 17 de Marzo de 2009, Alex Balashov escribió:
> I think the real question is what the adoption status of this draft is,
> and whether it will break interop.

A stateless proxy should of course forward replies statelell (with no 
transaction), but a statefull proxy doesn't need to do it at all.

A stateful proxy decides to work in stateful mode, so it creates transactions 
to send the requests and it expects that replies would belong to these 
transactions. If not, these responses are not useful at all.

Please note that while RFC 3261 allows a stateful proxy ruting stateless 
replies with no transaction, the mentioned draft discourages it totally since 
it can be used by an attacker. AFAIR there are no interop issues (you are the 
proxy, you can decide to disallow stateless routing safely).

Regards. 


-- 
Iñaki Baz Castillo