[Freeswitch-users] Reply to Via

David Villasmil david.villasmil.work at gmail.com
Tue Feb 16 10:14:43 UTC 2021


-nonat ?

On Tue, 16 Feb 2021 at 10:00, Carsten Bock <carsten at ng-voice.com> wrote:

> Hi,
>
> I have a quick NAT related question.
> Is there a way to disable NAT handling completely?
>
> FreeSwitch always replies to the IP/Port were it received the message from
> and not to the host/port in Via....
>
> recv 1166 bytes from udp/[172.17.0.1]:36835 at 10:20:56.652918:
> ------------------------------------------------------------------------
> INVITE sip:ann-early at 167.99.136.226:5080 SIP/2.0
> Record-Route: <sip:167.99.136.226:5070;lr>
> Via: SIP/2.0/UDP 167.99.136.226:5070;branch=z9hG4bKe305.92946d84.0
> Via: SIP/2.0/UDP 192.168.178.52:37350
> ;received=93.221.23.15;branch=z9hG4bK-524287-1---936bd2b8103acd0c;rport=37350
> [...]
>
> send 366 bytes to udp/[172.17.0.1]:5070 at 10:20:56.659313:
> ------------------------------------------------------------------------
> SIP/2.0 100 Trying
> Via: SIP/2.0/UDP 167.99.136.226:5070
> ;branch=z9hG4bKe305.92946d84.0;received=172.17.0.1
> From: <sip:b2bua at 167.99.136.226:5070;transport=UDP>;tag=7793d52b
> To: <sip:3 at 167.99.136.226:5070>
> Call-ID: akjc99KAbZfHxXHSea_iTQ..
> CSeq: 1 INVITE
> User-Agent:
> FreeSWITCH-mod_sofia/1.10.5-release+git-20201002T121516Z~a1bfb14c04~64bit
> Content-Length: 0
>
> Is there a way, to make FreeSwitch simply reply to the Host/Port in the
> Via-Header?
>
> My Profile is rather simple and I tried it with setting the local network
> ACS and NDLB-force-rport:
>
>     <profile name="local">
>    <settings>
>    <param name="local-network-acl" value="none"/>
> <param name="NDLB-force-rport" value="disabled"/>
>    <param name="context" value="local"/>
>         <param name="sip-ip" value="$${local_address}"/>
>         <param name="ext-sip-ip" value="autonat:167.99.136.226"/>
>         <param name="sip-port" value="5080"/>
>         <param name="rtp-ip" value="$${local_address}"/>
>         <param name="ext-rtp-ip" value="autonat:167.99.136.226"/>
>         <param name="auth-calls" value="false"/>
>       </settings>
>     </profile>
>
> Changing "NDLB-force-rport" to false did not have any impact.
>
> Thanks,
> Carsten
>
>
>
> --
> Carsten Bock I CTO & Founder
>
> ng-voice GmbH
>
> Trostbr├╝cke 1
> <https://www.google.com/maps/search/Trostbr%C3%BCcke+1?entry=gmail&source=g>
> I 20457 Hamburg I Germany
> T +49 40 524 75 93-40 | M +49 179 2021244 I www.ng-voice.com
>
> Registry Office at Local Court Hamburg, HRB 120189
> Managing Directors: Dr. David Bachmann, Carsten Bock
>
>
>
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-- 
Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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