Hello guys I want configure user frendly WebRTC server based on FreeSwitch and SipML5 client. It can be easy done in FreeSwitch and NGINX is bounded to different IP/ports. But if you wants use one IP and 443 port then you will try configre NGINX to proxy all reuests line "/fs-socket/" to FreeSwitch port 7443. It is works fine but FreeSwitch cannot not see real client IP address like folowing. Captured on Amazon server. freeswitch@ip-172-31-29-87.us-west-2.compute.internal> sofia status profile internal reg Registrations: ================================================================================================= Call-ID: f1e8c7ca-8f50-4285-fd1a-148d2f1d1b88 User: 23@46.218.201.23 Contact: "23" <sips:23@df7jal23ls0d.invalid ;rtcweb-breaker=no;transport=wss;fs_nat=yes;fs_path=sips%3A23%40172.31.29.87%3A37244%3Brtcweb-breaker%3Dno%3Btransport%3Dwss> Agent: IM-client/OMA1.0 sipML5-v1.2016.03.04 Status: Registered(TLS-NAT)(unknown) EXP(2016-12-24 09:42:43) EXPSECS(230) Ping-Status: Reachable Ping-Time: 0.00 Host: ip-172-31-29-87.us-west-2.compute.internal IP: 172.31.29.87 Port: 37244 Auth-User: 23 Auth-Realm: 46.218.201.23 MWI-Account: 23@46.218.201.23 Total items returned: 1 ================================================================================================= Displayed real IP address of NGINX Also when received INVITE then variables like network_addr will cantain real IP of NGINX. Then you can try confgire nginx like ng proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; But FreeSwitch wants SIP headers "X-AUTH-IP" and "X-AUTH-PORT" in every SIP message not only connection establishing. NGINX not understand SIP messages and cannot do it. Then you will try cofigure Kamailio between NGINX and FreeSwitch. In this case Kamailio can parce http headers and add requred SIP header. Are you can suggest other way to publish FreeSwitch socket on same port with http server?