Daniel, I will re-write it in Kamailio, seems to be that during initial WS negotiation (HTTP Connection Upgrade), Kamailio is already including the Via header:
Via: SIP/2.0/TCP 172.31.22.2:37137\r\n Which as you said is perfectly fine, Im just trying to hide my info. Thanks -Gonzalo No. Time Source Destination Protocol Length Info 13 21:00:41.016 172.31.22.2 172.31.27.85 HTTP 814 GET / HTTP/1.1 Frame 13: 814 bytes on wire (6512 bits), 814 bytes captured (6512 bits) Ethernet II, Src: 06:17:4e:87:69:98 (06:17:4e:87:69:98), Dst: 06:79:4f:ef:e3:d6 (06:79:4f:ef:e3:d6) Internet Protocol Version 4, Src: 172.31.22.2 (172.31.22.2), Dst: 172.31.27.85 (172.31.27.85) Transmission Control Protocol, Src Port: 37137 (37137), Dst Port: na-localise (5062), Seq: 1, Ack: 1, Len: 748 Hypertext Transfer Protocol GET / HTTP/1.1\r\n [Expert Info (Chat/Sequence): GET / HTTP/1.1\r\n] Request Method: GET Request URI: / Request Version: HTTP/1.1 Host: ramenlabs.io:5062\r\n Upgrade: websocket\r\n Connection: Upgrade\r\n Pragma: no-cache\r\n Cache-Control: no-cache\r\n Origin: https://www.ramenlabs.io\r\n Sec-WebSocket-Version: 13\r\n User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2180.0 Safari/537.36\r\n Accept-Encoding: gzip, deflate, sdch\r\n Accept-Language: en-US,en;q=0.8\r\n Cookie: __utmt=1; __utma=257296520.931028039.1410155955.1412651114.1412653901.42; __utmb=257296520.1.10.1412653901; __utmc=257296520; __utmz=257296520.1410155955.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)\r\n Sec-WebSocket-Key: QR+qynpQ7+7psMScB/WkQQ==\r\n Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits\r\n Sec-WebSocket-Protocol: sip\r\n \r\n [Full request URI: http://ramenlabs.io:5062/] No. Time Source Destination Protocol Length Info 15 21:00:41.017 172.31.27.85 172.31.22.2 HTTP 314 HTTP/1.1 101 Switching Protocols Frame 15: 314 bytes on wire (2512 bits), 314 bytes captured (2512 bits) Ethernet II, Src: 06:79:4f:ef:e3:d6 (06:79:4f:ef:e3:d6), Dst: 06:17:4e:87:69:98 (06:17:4e:87:69:98) Internet Protocol Version 4, Src: 172.31.27.85 (172.31.27.85), Dst: 172.31.22.2 (172.31.22.2) Transmission Control Protocol, Src Port: na-localise (5062), Dst Port: 37137 (37137), Seq: 1, Ack: 749, Len: 248 Hypertext Transfer Protocol HTTP/1.1 101 Switching Protocols\r\n [Expert Info (Chat/Sequence): HTTP/1.1 101 Switching Protocols\r\n] [Message: HTTP/1.1 101 Switching Protocols\r\n] [Severity level: Chat] [Group: Sequence] Request Version: HTTP/1.1 Status Code: 101 Response Phrase: Switching Protocols Via: SIP/2.0/TCP 172.31.22.2:37137\r\n Sec-WebSocket-Protocol: sip\r\n Upgrade: websocket\r\n Connection: upgrade\r\n Sec-WebSocket-Accept: rb6Ng4aiTHNyZatk74btU9vZNPk=\r\n Server: Llamato SipRegistrar(1.0)\r\n Content-Length: 0\r\n \r\n On Mon, Oct 6, 2014 at 1:06 AM, Daniel-Constantin Mierla <mico...@gmail.com> wrote: > Hello, > > received is added because the client requests that via rport parameter or > because of using rport. If the processed request is REGISTER, you can try > removing rport/received parameters from Via, then do msg_apply_changes(). > > However, without rport enforcement, the response might not be routed back, > because SIP says to send it back to the address in Via, which is invalid in > websocket case. > > Maybe you can rewrite headers in nginx or use kamailio as a proxy/load > balancer instead of nginx and then you have plenty of options to play with > sip headers. > > Cheers, > Daniel > > > On 06/10/14 02:39, Gonzalo Gasca wrote: > > I'm using Kamailio as SIP Registrar using Websockets. > My topology looks like this: > > Sip client (sipml5) ---> wss ---> Nginx ---> ws ---> Kamailio 4.1.5 > > When I look into my SipMl5 application in the Register Message 200 OK > from Kamailio I see the Nginx private IP address 172.31.22.2 > > Via: SIP/2.0/WSS > df7jal23ls0d.invalid;rport=37111;received=172.31.22.2;branch=z9hG4bKtv75otkzmPVsdNWevweLt4TN9JnLnQ0p > > How can I remove private IP Address in Via header to achieve topology > hiding? > > From Kamailio logs: > > Oct 6 00:34:21 ip-172-31-27-85 /usr/sbin/kamailio[8941]: DEBUG: > registrar [reply.c:374]: build_contact(): created Contact HF: Contact: > <sips:gogasca@df7jal23ls0d.invalid;rtcweb-breaker=no;transport=wss>;expires=200#015#012 > Oct 6 00:34:21 ip-172-31-27-85 /usr/sbin/kamailio[8941]: DEBUG: sl > [sl.c:288]: send_reply(): reply in stateless mode (sl) > Oct 6 00:34:21 ip-172-31-27-85 /usr/sbin/kamailio[8941]: DEBUG: > <core> [msg_translator.c:204]: check_via_address(): > check_via_address(172.31.22.2, df7jal23ls0d.invalid, 0) > O > > > Version: kamailio 4.1.5 (x86_64/linux) > > # ------ topoh -------- > > modparam("topoh", "mask_key", "opencall") > modparam("topoh", "mask_ip", "<Public IP Address of Kamailio>") > modparam("topoh", "vparam_prefix", "llamato") > modparam("topoh", "mask_callid", 1) > modparam("topoh", "sanity_checks", 1) > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > -- > Daniel-Constantin Mierla > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users