[SR-Users] Kamailio-5.3.3. NAT and RTP not working

[Pavithra Mohanraja]

Hi,
This is the working pcap files inside openstack environment.
kindly check..

On Thu, May 14, 2020 at 5:15 PM supreeth herle <herlesupreeth at gmail.com>
wrote:

> Hi Pavithra,
>
> Thanks for the clarification. Can you please attach a pcap of the call
> where you are not seeing the RTP packets? And, btw is the call getting
> dropped or something in that scenario?
>
> Regards,
> Supreeth
>
>
> On Thu, 14 May 2020 at 13:34, Pavithra Mohanraja <pavimohan3004 at gmail.com>
> wrote:
>
>> Hi Supreeth,
>>
>> I have kamailio ims installed in 4 vms inside openstack.
>>
>> 10.40.10.3 - pcscf in port 4060 (pcscf with NAT enabled in pcscf.cfg
>> (!#define WITH_NAT) and configured rtpproxy)
>> 10.40.10.12 - icscf in port 4070
>> 10.40.10.5 - scscf in port 4080
>> 10.40.10.30 - hss
>>
>> so all these vms are running in same subnet.
>> I have a floating ip associated to pcscf.
>> Now I have two zoiper clients outside openstack
>> zoiper1 - 10.0.2.15 (NAT Enabled Network adaptor)
>> zoiper2 - 10.0.2.15
>>
>> when i am making a call from zoiper1 to zoiper2, call is going properly .
>> SIP messages are coming properly in wireshark packets.
>> when i filter for RTP packets in wireshark,  it is not coming.
>>
>>
>> when i have the zoiper clients inside openstack itself ,i can able to see
>> RTP Packets in wireshark between two sip clients without any NAT related
>> configurations done.
>>
>> Kindly help me.
>> Thanks.
>>
>> On Thu, May 14, 2020 at 4:49 PM supreeth herle <herlesupreeth at gmail.com>
>> wrote:
>>
>>> Can you explain some more when you mean by "RTP alone is not coming."?
>>> And, how are you checking/verifying that?
>>>
>>> Regards,
>>> Supreeth
>>>
>>> On Thu, 14 May 2020 at 13:12, Pavithra Mohanraja <
>>> pavimohan3004 at gmail.com> wrote:
>>>
>>>> Hi ,
>>>>
>>>> Yes I have configured as you mentioned only . In my pcscf only i have
>>>> rtpproxy also configured.
>>>> Floating IP i have given in listen address also as
>>>> listen = 10.40.10.3:4060 advertise 10.45.4.22:4060
>>>>
>>>> 10.40.10.3 - private ip
>>>> 10.45.4.22 - floating ip
>>>> Still RTP alone is not coming.
>>>>
>>>> Is it the only way of configuring NAT ?
>>>>
>>>> Thanks.
>>>>
>>>> On Thu, May 14, 2020 at 4:37 PM supreeth herle <herlesupreeth at gmail.com>
>>>> wrote:
>>>>
>>>>> Hello Pavithra,
>>>>>
>>>>> Have you tried advertising the floating IP of the VM running RTPProxy
>>>>> as follows?
>>>>>
>>>>> Edit /etc/default/rtpproxy file as follows:
>>>>>
>>>>> # Additional options that are passed to the daemon.
>>>>> EXTRA_OPTS="-l 172.24.15.30 -d DBUG:LOG_LOCAL0"
>>>>>
>>>>> here, "-l <PUBLIC_IP>"
>>>>>
>>>>> Hope it helps.
>>>>>
>>>>> Regards,
>>>>> Supreeth
>>>>>
>>>>> On Thu, 14 May 2020 at 13:01, Pavithra Mohanraja <
>>>>> pavimohan3004 at gmail.com> wrote:
>>>>>
>>>>>> Hi ,
>>>>>>
>>>>>> Could anybody please give me the approach how to configure NAT in
>>>>>> kamailio IMS.
>>>>>>
>>>>>> I have installed kamailio IMS in openstack environment which has
>>>>>> private ips for all four vms (each component in one vm). pcscf has one
>>>>>> floating IP attached. I have enabled "WITH_NAT" and configured rtpproxy .
>>>>>>
>>>>>> when i make a call from outside of openstack using 2 zoiper clients
>>>>>> with outbound proxy keeping floating ip of pcscf, I am getting 200 ok with
>>>>>> all SIP packets correctly flowing but there is no RTP Packet.
>>>>>>
>>>>>> When i try the same within openstack environment without using public
>>>>>> ip, I am getting RTP Packets.
>>>>>>
>>>>>> Kindly tell me the procedure of NAT Enablement or do i need to do
>>>>>> anything other than this.
>>>>>>
>>>>>> Kindly help because i am stuck with this for long time.
>>>>>>
>>>>>>
>>>>>> Thanks.
>>>>>> _______________________________________________
>>>>>> Kamailio (SER) - Users Mailing List
>>>>>> sr-users at lists.kamailio.org
>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>
>>>>> _______________________________________________
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>>>>>
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