[SR-Users] Error in RTP engine setup

[Pavithra Mohanraja]

Hi David,

Thanks for the response, the problem is i'm running pcscf within a pod and
reboot will not help in my case. But the issue is resolved when i
reinstalled linux-headers. Now it starts without any errors. I got the
following logs while starting pcscf.
*1(5087) INFO: rtpengine [rtpengine.c:2750]: rtpp_test(): rtpengine
instance <udp:localhost:2223> found, support for it enabled*
But when i made sip call, packet capture shows rtp flow between two sip
client address. It means the packets are not flowing through proxy
right?(If not please suggest me how to verify it) Does this log guarantees
that proxy is setup or anything else to be done.

Kindly help me with this issue.

Regards,
Pavithra

On Wed, Oct 14, 2020 at 9:54 PM David Villasmil <
david.villasmil.work at gmail.com> wrote:

> I believe you need to add the table yourself like:
>
> https://github.com/sipwise/rtpengine
>
>
> # this only needs to be one once after system (re-) boot
> modprobe xt_RTPENGINE
> iptables -I INPUT -p udp -j RTPENGINE --id 0
> ip6tables -I INPUT -p udp -j RTPENGINE --id 0
>
> # ensure that the table we want to use doesn't exist - usually needed after a daemon
> # restart, otherwise will error
> echo 'del 0' > /proc/rtpengine/control
>
> # start daemon
> /usr/sbin/rtpengine --table=0 --interface=10.64.73.31 --interface=2001:db8::4f3:3d \
> --listen-ng=127.0.0.1:2223 --tos=184 --pidfile=/run/rtpengine.pid --no-fallback
>
>
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
>
>
> On Wed, Oct 14, 2020 at 5:06 PM Pavithra Mohanraja <
> pavimohan3004 at gmail.com> wrote:
>
>> Hi,
>> I tried to setup rtpengine to make my sip clients communicate through
>> proxy following https://open5gs.org/open5gs/docs/tutorial/02-VoLTE-setup/
>>
>> I started sip communication since the service was running and saw that
>> the RTP packets go to exposed rtp interface instead of other sip client.
>> But i don't receive packets from the other end.
>>
>> When analyzed I noticed the rtp-engine daemon gives a few errors.
>> *modprobe: FATAL: Module xt_RTPENGINE not found in directory
>> /lib/modules/4.15.0-118-generic*
>>
>>
>> *iptables: No chain/target/match by that name.ip6tables: No
>> chain/target/match by that name. * Starting RTP/media proxy
>> ngcp-rtpengine-daemon
>>         [1602690253.130392] ERR: FAILED TO CREATE KERNEL TABLE 0 (No such
>> file or directory), KERNEL FORWARDING DISABLED*
>> *(Note: *uname -r gives 4.15.0-118-generic and  /lib/modules/ has only
>> 4.15.0-115-generic*)*
>>
>> Please help me with this issue. Thanks in Advance.
>>
>> Regards,
>> Pavithra
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>>
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