I have a situation, where transport_ice.c works incorrectly or I do something wrong? In my network exists a route to direct connection between sip clients. - ICE is enabled. - STUN is disabled PC1(2 IPs: 192.168.11.6, 10.119.191.2) PC2(1 IP: 192.168.1.3) 192.168.11.0/24 ---------[router]-------------------- 192.168.1.0/24 -------------[NAT]-------------Internet1-------------------SIP Registrar 10.119.191.0/24----------[NAT]-------------Internet2--------------------------------------------------------------------------------------SIP Registrar Possible ICE route is:192.168.11.6 <-----> 192.168.1.3 But transport_ice.c make sdp_state->ice_mismatch = PJ_TRUE; so there are no attempts to check candidates. With modified transport_ice.c code (forsed ice_mismatch into false) and voice traffic goes directly without mediagateway! So it is realy possible. Please look into it. I have read https://trac.pjsip.org/repos/wiki/IceNegotiationFailure but there is no information about ice_mismatch. Benny said that transport_ice.c is ok, but what in now ok ??? =======original code=========================================== /* Check matched component count and ice_mismatch */ if (comp1_found && (tp_ice->comp_cnt==1 || !has_rtcp)) { sdp_state->match_comp_cnt = 1; sdp_state->ice_mismatch = PJ_FALSE; } else if (comp1_found && comp2_found) { sdp_state->match_comp_cnt = 2; sdp_state->ice_mismatch = PJ_FALSE; } else { sdp_state->match_comp_cnt = (tp_ice->comp_cnt > 1 && has_rtcp)? 2 : 1; sdp_state->ice_mismatch = PJ_TRUE; } ==========my code========================================== /* Check matched component count and ice_mismatch */ if (comp1_found && (tp_ice->comp_cnt==1 || !has_rtcp)) { sdp_state->match_comp_cnt = 1; sdp_state->ice_mismatch = PJ_FALSE; } else if (comp1_found && comp2_found) { sdp_state->match_comp_cnt = 2; sdp_state->ice_mismatch = PJ_FALSE; } else { sdp_state->match_comp_cnt = (tp_ice->comp_cnt > 1 && has_rtcp)? 2 : 1; if (!comp2_found) { sdp_state->ice_mismatch = PJ_TRUE; } else { sdp_state->ice_mismatch = PJ_FALSE; } } ====================================================== 02:43:43.828 pjsua_core.c RX 1924 bytes Request msg INVITE/cseq=19859 (rdata00C69CCC) from UDP 212.53.40.40:5060: INVITE sip:mmmmmmmmmmmm at 192.168.1.3:5060;ob SIP/2.0 Via: SIP/2.0/UDP 212.53.40.40:5060;branch=z9hG4bK199210-kmbdctp;cgp=etc.tario.ru;rport P-Asserted-Identity: <sip:ccccccccccccccc at sipnet.ru> P-CGP-Redirector: mmmmmmmmmmmm at sipnet.ru Record-Route: <sip:212.53.40.40:5060;lr> Record-Route: <sip:192.168.40.77:5060;lr> Record-Route: <sip:rev.5662709-192.168.40.77.dialog.cgatepro;lr> Via: SIP/2.0/TCP 10.119.191.2:2256;rport=2256;branch=z9hG4bKPj1d9f93bc29f04fbdb5c5908fccefba91;received=193.151.105.53 Record-Route: <sip:tcp-193.151.105.53-2256C192.168.40.77.nat.cgatepro;lr> Max-Forwards: 69 From: <sip:ccccccccccccccc@xxxxxxxxx>;tag=408f214a3958484f9b1b8a8f91837bd3 To: <sip:mmmmmmmmmmmm at sipnet.ru> Call-ID: e47485b7c61949f8a144d1405a8c32db Contact: <sip:ccccccccccccccc at 10.119.191.2:5060;ob>;+sip.ice CSeq: 19859 INVITE Supported: replaces,100rel,timer,norefersub Allow: PRACK,INVITE,ACK,BYE,CANCEL,UPDATE,SUBSCRIBE,NOTIFY,REFER,MESSAGE,OPTIONS User-Agent: PJSIP/2.0.0-alpha-svn (win32) MicroSIP/1.7.2 Session-Expires: 1800 Min-SE: 90 Content-Type: application/sdp Content-Length: 833 v=0 o=- 3525561821 3525561821 IN IP4 10.119.191.2 s=pjmedia c=IN IP4 212.53.40.77 t=0 0 a=mediagateway:etc.tario.ru:5662709:192.168.40.77 a=X-nat:0 m=audio 25684 RTP/AVP 98 97 99 104 3 0 8 9 96 c=IN IP4 212.53.40.77 a=rtpmap:98 speex/16000 a=rtpmap:97 speex/8000 a=rtpmap:99 speex/32000 a=rtpmap:104 iLBC/8000 a=fmtp:104 mode=30 a=rtpmap:3 GSM/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:9 G722/8000 a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-15 a=sendrecv a=candidate:Ha77bf02 1 UDP 2130706431 10.119.191.2 3234 typ host a=candidate:Hc0a80b06 1 UDP 2130706431 192.168.11.6 3234 typ host a=candidate:Ha77bf02 2 UDP 2130706430 10.119.191.2 3238 typ host a=candidate:Hc0a80b06 2 UDP 2130706430 192.168.11.6 3238 typ host a=ice-pwd:18074614 a=ice-ufrag:651945de a=rtcp:3238 IN IP4 10.119.191.2 ====================================================== comp1_found 0 comp2_found 1 has_rtcp 1 => sdp_state->ice_mismatch = PJ_TRUE;
