[SR-Users] Location Fields Address vs Received

[Sergiu Pojoga]

In short, if NAT is detected during REGISTER - then Received is set (it
later becomes the D-URI when sending something to that Contact).

https://kamailio.org/docs/modules/stable/modules/nathelper.html#nathelper.p.received_avp

Regards,

On Wed, Nov 25, 2020 at 10:54 AM Daniel Greenwald <dgreenwald at gmail.com>
wrote:

> On a usrloc record there is an Address field and Received field. The
> Received field is sometimes not set. What causes it to be not set and what
> is the difference between the two fields. Sorry if this is a dumb question,
> I looked at documentation but couldn't find it spelled out. Here is are 2
> examples from kamcmd ul.dump:
> {
>        AoR: utkcf9b6h3 at ata.phaxio.com
>        Contacts: {
>                Contact: {
>                        Address: sip:utkc4ff9b6h3 at 69.78.34.56:4615;transport=tcp
>
>                        Expires: 42
>                        Q: -1.000000
>                        Call-ID: d1c314305df3d342 at 192.168.0.3
>                        CSeq: 129173
>                        User-Agent: OBIHAI/OBi200-3.2.2.5898
>                        Received: [not set]
>                        Path: [not set]
>                        State: CS_NEW
>                        Flags: 0
>                        CFlags: 0
>                        Socket: tcp:10.0.22.254:5060
>                        Methods: 7839
>                        Ruid: uloc-5fbdd369-491e-4
>                        Instance:
> <urn:uuid:00000000-0000-0000-0000-9cadef62b3da>
>                        Reg-Id: 0
>                        Server-Id: 0
>                        Tcpconn-Id: 58
>                        Keepalive: 0
>                        Last-Keepalive: 1606317577
>                        Last-Modified: 1606317577
>                }
>        }
> }
>
>
>
>
>  Contact: {
>                 Address: sip:mfjngfd272av at 192.168.0.106:5060
>                 Expires: 30
>                 Q: -1.000000
>                 Call-ID: 67413de375b2e76c at 192.168.0.106
>                 CSeq: 146320
>                 User-Agent: OBIHAI/OBi300-3.2.2.5921
>                 Received: sip:70.34.56.78:5060
>                 Path: [not set]
>                 State: CS_NEW
>                 Flags: 0
>                 CFlags: 64
>                 Socket: udp:10.0.22.254:5060
>                 Methods: 7839
>                 Ruid: uloc-5fbdd369-490e-efa3
>                 Instance: <urn:uuid:00000000-0000-0000-0000-9cadef810877>
>                 Reg-Id: 0
>                 Server-Id: 0
>                 Tcpconn-Id: -1
>                 Keepalive: 1
>                 Last-Keepalive: 1606314719
>                 Last-Modified: 1606314719
>             }
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