[SR-Users] kamailio.cfg : behind the NAT (listen and advertise) understanding

[Youssef Boujraf]

Dear,

Then;

- For public softphone :

listen=udp: IPv4_private: 5060 advertise  IPv4_public : 5060

Domain :  IPv4_public:5060

- For private softphone on same vlan as kamailio

listen=udp: IPv4_private:5066

Domain :  IPv4_private:5066



Best Regards,

Youssef BOUJRAF
Email: yboujraf at gmail.com


On Fri, Mar 4, 2022 at 3:00 PM Youssef Boujraf <yboujraf at gmail.com> wrote:

> Hi Dear
>
> I am trying to understand how "listen" and "advertise" work for sip
> signaling purpose ( corebooks : listen
> <http://www.kamailio.org/wiki/cookbooks/5.4.x/core#listen> and advertise )
>
> Flow : kamailio behind NAT using softphones on private and public networks.
>
> - kamailio :
>
> Network :
>
> IPv4_private 192.168.1.6 / IPv4_public
>
> kamailio.cfg :
>
> listen=udp: IPv4_private: 5060 advertise  IPv4_public : 5060
>
> - uac (softphone) :
>
> zoiper, microsip, cisco spa508g
>
> USE CASE :
>
> I 'd like to force all softphone on the same local network to reach
> kamailio through a public ip address.
>
> ??? QUESTION : Do I need to REGISTER on IPv4_private address of Kamailio
> OR REGISTER on IPv4_public address of kamailio or DEFINE another "listen"
> with another PORT WITHOUT "advertise"  for softphone on same kamailio
> network ?
>
> listen=udp: IPv4_private: 5060 advertise  IPv4_public : 5060
> listen=udp: IPv4_private: 5066
>
>
> Do I need to use "kamctl ps" to verify which interface is listening on
> port ?
>
> Thanks in advance
>
> Best Regards,
>
> Youssef BOUJRAF
> Email: yboujraf at gmail.com
>
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