[Asterisk-Users] SIP INVITE and ACK go to different ports

[Mark Spencer]

Be sure you do *not* have NAT mode turned on.

Mark

On Wed, 28 May 2003, Alex Zarubin wrote:

> Greetings,
>
> CVS 05/23/03. 10.50.4.140 is an * box. I see SIP INVITE to port 5060 and ACK
> (after OK) to port 32824.
> The log is attached.
>
> tcpdump shows
>
> 18:31:48.380006 10.50.4.140.5060 > wmssqa02.webley.5060:  udp 615 (DF)
> 18:31:48.390007 wmssqa02.webley.32824 > 10.50.4.140.5060:  udp 331 (DF)
> 18:31:48.500018 wmssqa02.webley.32824 > 10.50.4.140.5060:  udp 554 (DF)
> 18:31:48.540022 wmssqa02.webley.32824 > 10.50.4.140.5060:  udp 540 (DF)
> 18:31:48.540022 10.50.4.140.5060 > wmssqa02.webley.32824:  udp 369 (DF)
>
>
> 17.1.1.2 Formal Description
>
>    ...The ACK MUST be sent to the same address, port, and transport
>    to which the original request was sent...
>
> I don't see configuration problems but cannot be 100% sure. I think it was
> working before (on a different * box).
>
> Thank you.
>
> Alex Zarubin
>
>  <<z>>
>