On 16 Apr 2018, at 12:13, Federico Cabiddu &lt;federico.cabiddu(a)gmail.com&gt; wrote: Hi, your INVITE contains a single Record-Route, with Kamailio's Public IP address. Freewitch in the following in0dialog messages, as the BYE is, will have nowhere else to send them than the public IP. If you want FS to send in-dialog messages to the private IP you have to have two Record-Route headers: http://www.kamailio.org/docs/modules/devel/modules/rr.html#rr.p.enable_doub… <http://www.kamailio.org/docs/modules/devel/modules/rr.html#rr.p.enable_double_rr> Best regards, Federico On Mon, Apr 16, 2018 at 11:05 AM, arik halperin &lt;arik.halperin(a)s3code.com <mailto:arik.halperin@s3code.com>> wrote: Hello, I have the following setup: Kamailio: Public Interface 70.36.25.65 Private Interface 10.168.10.227 Freeswitch: Private Interface 10.168.10.200 I’m routing calls from kamailio to freeswitch, but when I try to hang up the call the freeswitch sends the BYE to the public address(70.36.25.65) and not to the private address 10.168.10.227. 200OK and ACK work correctly. It’s only the BYE that has an issue. Showing INVITES: Client Invite: T 82.80.164.63:53871 <http://82.80.164.63:53871/> -> 70.36.25.65:5099 <http://70.36.25.65:5099/> [AP] INVITE sip:+972549428460@70.36.25.65:5099 <http://sip:+972549428460@70.36.25.65:5099/> SIP/2.0. Via: SIP/2.0/TCP 10.0.0.42:51619;branch=z9hG4bK-524287-1---52dcc73ec891de14;rport. Max-Forwards: 70. Contact: <sip:972545234585@82.80.164. <mailto:sip%3A972545234585@82.80.164.>63:51620;rinstance=1f9d21b54116df89;transport=tcp>. To: <sip:+972549428460@70.36.25.65:5099 <http://sip:+972549428460@70.36.25.65:5099/>>. From: "972545234585"<sip:972545234585@70.36.25.65:5099 <http://sip:972545234585@70.36.25.65:5099/>>;tag=902c5325. Kamailio to FS: T 10.168.10.227:46506 <http://10.168.10.227:46506/> -> 10.168.10.200:5080 <http://10.168.10.200:5080/> [AP] INVITE sip:+972549428460@70.36.25.65:5099 <http://sip:+972549428460@70.36.25.65:5099/> SIP/2.0. Record-Route: <sip:70.36.25.65:5099 <http://70.36.25.65:5099/>;transport=tcp;lr=on;ftag=902c5325;nat=yes>. Via: SIP/2.0/TCP 70.36.25.65:5099;branch=z9hG4bK1117.1b91cfe0632bd6f036b308f85898e862.1;i=1. Via: SIP/2.0/TCP 10.0.0.42:51619;received=82.80.164.63;branch=z9hG4bK-524287-1---9b6758521ff0f528;rport=53871. Max-Forwards: 69. _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users