Hi Daniel,

On Fri, Jan 23, 2015 at 12:55 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

can you split your checks from nat_uac_test("23") to individual checks (like nat_uac_test("1"), nat_uac_test("2"), ...) and see which one fails?

Yes. It's the Via check (2). And I don't see why. This is ngrep (with changed IPs):

U 2015/01/23 14:24:22.258609 2a01:123:123:1234::2:16732 -> 2001:987:98:9876::aa01:5060
REGISTER sip:domain SIP/2.0
Via: SIP/2.0/UDP [2a01:123:123:1234::2]:16732;branch=z9hG4bK4b4ba821

The Source IP is identical to the Via IP. Except that when sending it out, the received IP is not shortened:

Via: SIP/2.0/UDP [2a01:123:123:1234::2]:16732;rport=16732;received=2A01:123:123:1234:0:0:0:2;branch=z9hG4bK0cda996b

Via parameter 'received' contains (always, as per spec) only the IP address, rport is for received port. Perhaps adding [] would not harm, but otherwise should be ok now.

I agree.

For path module, I pushed a patch. Maybe you can test and report the results for it.

Thanks again. It now works as expected, even with received parameter in the Path.

Best Regards,
Sebastian