Hello guys,


this is my scenario, as you see, the public-facing ip is using port 5060 while the internal 5066.
All works ok (with force_socket), but when forwarding the ACK, kamailio uses the wrong ip (5060), when it should be using 5066.


U PUBLIC:58031 -> 172.31.69.53:5060
INVITE sip:*TESTCALL@myserver.com;transport=UDP SIP/2.0.

U 172.31.69.53:5060 -> PUBLIC:58031
SIP/2.0 100 trying -- your call is important to us.

U 172.31.69.53:5066 -> 172.31.65.238:5080
INVITE sip:*TESTCALL@myserver.com;transport=UDP SIP/2.0.

U 172.31.65.238:5080 -> 172.31.69.53:5066
SIP/2.0 100 Trying.

U 172.31.65.238:5080 -> 172.31.69.53:5066
SIP/2.0 200 OK.

U 172.31.69.53:5060 -> PUBLIC:58031
SIP/2.0 200 OK.

U PUBLIC:58031 -> 172.31.69.53:5060
ACK sip:*TESTCALL@172.31.65.238:5080;transport=udp SIP/2.0.
************BELOW*************

U 172.31.69.53:5060 -> 172.31.65.238:5080
ACK sip:*TESTCALL@172.31.65.238:5080;transport=udp SIP/2.0.


Regards,

David Villasmil
phone: +34669448337


On Mon, Apr 1, 2019 at 7:08 PM Antony Stone <Antony.Stone@kamailio.open.source.it> wrote:
On Monday 01 April 2019 at 17:37:45, David Villasmil wrote:

> Hello guys,
> I have public and private IPs, and i need to force the sending socket
> replying to internal out externals endpoint

> This works nicely, except for ACKs and potentially other packets sent
> statelessly?
>
> Anyone knows how to fix this?

Have you tried something like:

ip rule add from int.ernal.ip.addr lookup mytable
ip route add default dev external_interface_device table mytable

echo "234 mytable" >>/etc/iproute2/rt_tables


Antony.

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