[SR-Users] Kamailio with CGNAT

[Joel Serrano]

Also, if the client is not behind CGNAT do you get the Ringing from called
party?

Is called party the same in both cases?



On Sun, Aug 26, 2018 at 09:54 Joel Serrano <joel at textplus.com> wrote:

> Can you send the INVITE that proxy sends to called party?
>
> On Sun, Aug 26, 2018 at 02:05 Amar Tinawi <amar.tinawi at gmail.com> wrote:
>
>> Hello
>> Although my question it's not related to Kamailio directly, but i think
>> someone could help in this strange behavior
>>
>> in our tests, we have some clients under private networks, where the
>> provider of those networks implements CGNAT (NAT444) for it's customers to
>> reach internet
>> (Client Private IP) --->(Home router: Private to Private NAT)--->(FW with
>> CGNAT)---------------------------->(Kamailio Proxy Public IP)
>>
>>
>> Registration is performing fine, but making calls from this client had
>> strange problem as follow:
>>
>> Client -------------INVITE--------------> Proxy
>> Proxy -------------Trying---------------->Client
>> Proxy--------------INVITE---------> Called Party
>>
>> The called party should send Ringing msg, but the massage get lost
>> somewhere and didn't reach to the Proxy. Although all the IP's in sip
>> massages are public
>> i tried with STUN/TURN and NAThelper module solutions, but didn't help
>>
>> is there any way to slove CGNAT with SIP in Kamailio?
>>
>>
>> Thanks in Advance
>>
>>
>>
>>
>>
>>
>>
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>
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