[SR-Users] Received ipv6 problem

[Joel Serrano]

Not exactly an answer to your specific question, but it might help solve
your problem in a different way...

If you using the registrar module with save()... you might be able to take
advantage in some way of the flags 0x04:

https://kamailio.org/docs/modules/5.3.x/modules/registrar.html#registrar.f.save


*"0x04 - store and maintain one contact per AoR. If there are other contact
addresses for AoR not matching current registration, remove them. This mode
ensures one contact per AoR (user)."*

Regarding "received", I would think that you have it on IPV4 because the UA
is probably behind NAT, and you are adding it in config script, with IPv6,
there is no NAT, and --most likely-- you are not adding it, thus it's not
saved to the database. Check if you are using fix_nated_register()
somewhere in your config file.. For IPv6 it might be easier if you just
pull the IP from the Contact info.


Sorry if this isn't very helpful, I'm guessing a little based on the info
you provided :)

Cheers,
Joel.



On Tue, Jun 2, 2020 at 4:46 PM Ahmed Marsou <amarsou1988 at gmail.com> wrote:

> Hi;
> I'm using the received parameter to send a MESSAGE to unregsiter the first
> user that is registered to register the second one.
> Using:
> *modparam("usrloc", "received_column"*
>
> *modparam("registrar|nathelper", "received_avp",*
>
> and when I do a:
> select received from location;
> as you can see is null.
> +----------+
> | received |
> +----------+
> | NULL     |
> +----------+
>
> In IPV4 is working fine, but in IPV6 is not. Can you tell me how can I get
> this value?
> Im going crazy with that.
>
>                 reg_fetch_contacts("location", "$fu", "existingContact");
>                 if( $(ulc(existingContact=>user_agent)[0]) =~ "SPI/v"){
>                         $var(oldDeviceId) =
> $(ulc(existingContact=>callid)[0]{s.substr,9,0});
>                         $var(newDeviceId) = $(hdr(Call-ID){s.substr,9,0});
>                         if($var(oldDeviceId) !=  $var(newDeviceId) ){
>                                 xlog("L_INFO","New device id is
> different:warn previous user another user overide him");
>                                 $var(address) = $(ulc(existingContact=>
> *received*)[0]);
>                                 $var(ruri) = $(var(address){s.substr,4,0});
>                                 #Send a SIP Request signalling the problem
> and its reason on the body
>                                 $uac_req(method)="MESSAGE";
>                                 $uac_req(ruri) = "sip:"+ $au + "@" +
> $var(ruri);
>                                 $uac_req(furi) = "sip:kamailio at sip_domain
> ";
>                                 $uac_req(turi) = $fu;
>                                 $uac_req(hdrs)="Max-Forwards: 70\r\nEvent:
> reg\r\nContent-Type:
> text/plain\r\nAccept-Contact:*;+g.ext.app.registration\r\n";
>                                 $uac_req(body)="Already registered with
> another device id";
>                                 uac_req_send();
>                                 drop;
>                                 }
>                         }
>
>
> Thank you.
>
>
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