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
phone: +34669448337


On Wed, Oct 14, 2020 at 5:06 PM Pavithra Mohanraja <pavimohan3004@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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