[OpenSIPS-Users] RURI domain on NAT'd endpoints

[Jeff Pyle]

All very good points.  I've largely been able to avoid NAT up until now, so
I'm afraid I'm a bit too green to offer any clarification.


- Jeff



On 9/8/09 1:08 AM, "Thomas Gelf" <thomas at gelf.net> wrote:

> Thomas Gelf wrote:
>> Jeff Pyle wrote:
>>> if (client_nat_test("3")) {
>>>       force_rport();
>>>       $avp(s:received_uri) = $source_uri;
>>>       if (!is_method("REGISTER")) fix_contact();
>>>       setbflag(7);
>>> }        # nat_keepalive() further down after some pref checks
> 
> One more thing: I'm doing client_nat_test("1) in reply routes (should
> make sense), client_nat_test("7") for REGISTERs and client_nat_test("3")
> for other requests. While I'm pretty sure regarding the reply_route part
> (you cannot use test 2 and 4 as Via headers are nothing but copies from
> Request), I'm wondering whether the latter distinction between REGISTER
> and other request is making sense.
> 
> Googling and having a look to Flavios book shows that also others are
> doing so - why?? If test 4 matches, the request would for sure also
> trigger test 2 wouldn't it? So, may I completely skip test 4?
> 
> There is one special case that comes to my mind: does test 2 somehow
> respect the rport parameter? I mean, if topmost Via has a private IP
> and rport set - is test 2 then still triggered?
> 
> Best regards,
> Thomas Gelf