[Users] x-lite and nat_uac_test(16)

[Andreas Granig]

Alexander,

> I've noticed that (at least on my boxes) x-lite uses a different
> source-port for the sip-connection than the one that is announced in the
> Via-header. (See the example below.)

Are you sure there isn't any NAT or ALG in between? By default, x-lite 
binds to local port 5060, but you've some non-standard ports in there.
So my guess is either a non-standard port setting in x-lite and NAT, or 
a faulty ALG on the NAT device.

Here's a trace using x-lite 2.0 r1105d (Linux):

U 192.168.123.129:5060 -> <public IP>:5060
REGISTER sip:<some domain> SIP/2.0.
Via: SIP/2.0/UDP 192.168.123.129:5060;rport;branch=z9hG4<snip>

Cheers,
Andreas