RE: nist-sip 1.2 and NAT traversal : issue with ListeningPoint sentby field

Hi Jeroen,

Good result: if I leave the sentby in the LP at the default (local internal
IP), and don't sent any Via headers myself, the LP passes it just fine! So
the issue was really my insertion of a Via header...

thanks

Brian

> -----Original Message-----
> From: Jeroen van Bemmel [mailto:[email protected]]
> Sent: Thursday, January 17, 2008 9:51 AM
> To: Brian Wyld
> Cc: [email protected]; [email protected]
> Subject: Re: nist-sip 1.2 and NAT traversal : issue with ListeningPoint
> sentby field
>
>
> Brian,
>
>  > Jeroen, I assume I am 'allowed' (in the protocol sense) to
> fixup the From
>  > URI as its just informational?
>
> Before you send out the INVITE, you can set the From to anything you
> like. After that, it has to remain the same throughout the Dialog (but
> SIP stack AFAIK does not enforce this, so if you create a mid-dialog
> request and then change the From header, it will send it out. Other side
> may have a problem with it though)
>
> On UAS side you shouldn't change the From header either
>
> Regards,
> Jeroen
>
>