<div dir="ltr">Just fix your ACL's to allow it.</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 14, 2015 at 6:11 PM, Thomas <span dir="ltr"><<a href="mailto:lists@virtues.net" target="_blank">lists@virtues.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Uh, if I diagnosed this correctly, the local subnet fails the candidate checks, because it's not part of the wan.auto<br>
list. Can this be a configuration thing? Or is there a reason to disallow RTP traffic on the LAN?<br>
<div class="HOEnZb"><div class="h5"><br>
On 14.09.2015 17:35, Thomas wrote:<br>
> Hello list,<br>
><br>
> testing some things on a LAN, I noticed Chrome and FS having problems establishing a direct LAN connection. Without any<br>
> ICE servers and the SDP being limited to the host address, FS rejects what looks like a perfectly fine SDP with a codec<br>
> negotiation error.<br>
><br>
> When TURN servers are available, Chrome already puts a TURN server's IP into the c= line. Other than that, there are<br>
> just additional relay ice candidates. FS will choose the TURN server in the c= line first, but later "auto change" to<br>
> the LAN address.<br>
><br>
> I could not find any other differences between the two SDPs. I've added some delay and checked listening ports to make<br>
> sure this isn't a timing issue on Chrome's end: It does listen on the ports it announced ...<br>
><br>
> Is there a configuration option, which could cause this? I can't quite believe this being a bug, because a lot of people<br>
> should have noticed ...<br>
><br>
> Thanks,<br>
><br>
> Thomas<br>
><br>
><br>
> P.S.:<br>
><br>
> Log snippet of rejected call:<br>
><br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:3260 Save audio Candidate cid: 1 proto: udp type: host addr:<br>
> <a href="http://192.168.1.113:50602" rel="noreferrer" target="_blank">192.168.1.113:50602</a><br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:3260 Save audio Candidate cid: 2 proto: udp type: host addr:<br>
> <a href="http://192.168.1.113:50603" rel="noreferrer" target="_blank">192.168.1.113:50603</a><br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:3300 Searching for rtp candidate.<br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:3300 Searching for rtcp candidate.<br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:3344 sofia/internal/<a href="mailto:tauge@sip.abc.com">tauge@sip.abc.com</a> no suitable candidates found.<br>
> 2015-09-14 16:12:54.962238 [DEBUG] switch_core_media.c:4427 Set 2833 dtmf send/recv payload to 126<br>
> 2015-09-14 16:12:54.962238 [ERR] mod_sofia.c:2284 CODEC NEGOTIATION ERROR. SDP:<br>
><br>
><br>
> Broken SDP:<br>
><br>
> v=0<br>
> o=ABC-WEB-2.0 6876809645794559979 2 IN IP4 127.0.0.1<br>
> s=-<br>
> t=0 0<br>
> a=group:BUNDLE audio<br>
> a=msid-semantic: WMS ec8f8f88-2e4f-4cbc-9c38-f51d6e6850d8<br>
> m=audio 64149 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 126<br>
> c=IN IP4 192.168.1.113<br>
> a=rtcp:64150 IN IP4 192.168.1.113<br>
> a=candidate:2624638470 1 udp 2122260223 192.168.1.113 64149 typ host generation 0<br>
> a=candidate:2624638470 2 udp 2122260222 192.168.1.113 64150 typ host generation 0<br>
> a=candidate:3539153654 1 tcp 1518280447 192.168.1.113 0 typ host tcptype active generation 0<br>
> a=candidate:3539153654 2 tcp 1518280446 192.168.1.113 0 typ host tcptype active generation 0<br>
> a=ice-ufrag:BOWdiCKMBJ5j5dcx<br>
> a=ice-pwd:zn1o5HVNk8ZjbFUlouk2bT3O<br>
> a=fingerprint:sha-256 9C:A5:CB:27:A8:B1:3D:4D:41:1A:F5:2A:B7:60:B9:06:6B:A3:A4:8F:5A:F6:AD:1D:50:28:E5:AE:28:70:28:AD<br>
> a=setup:actpass<br>
> a=mid:audio<br>
> b=AS:96<br>
> a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level<br>
> a=extmap:3 <a href="http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time" rel="noreferrer" target="_blank">http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time</a><br>
> a=sendrecv<br>
> a=rtcp-mux<br>
> a=rtpmap:111 opus/48000/2<br>
> a=fmtp:111 useinbandfec=1; usedtx=0; maxplaybackrate=48000; sprop-maxcapturerate=48000; maxaveragebitrate=64000;<br>
> sprop-stereo=0; stereo=0<br>
> a=rtpmap:103 ISAC/16000<br>
> a=rtpmap:104 ISAC/32000<br>
> a=rtpmap:9 G722/8000<br>
> a=rtpmap:0 PCMU/8000<br>
> a=rtpmap:8 PCMA/8000<br>
> a=rtpmap:126 telephone-event/8000<br>
> a=maxptime:60<br>
> a=ssrc:1980631361 cname:3nFhXh/3h3cqLn4p<br>
> a=ssrc:1980631361 msid:ec8f8f88-2e4f-4cbc-9c38-f51d6e6850d8 f63ca3d0-1e11-43ec-8bba-e3cf9beb55c2<br>
> a=ssrc:1980631361 mslabel:ec8f8f88-2e4f-4cbc-9c38-f51d6e6850d8<br>
> a=ssrc:1980631361 label:f63ca3d0-1e11-43ec-8bba-e3cf9beb55c2<br>
><br>
><br>
> Working SDP:<br>
><br>
> v=0<br>
> o=ABC-WEB-2.0 8443069933158526980 2 IN IP4 127.0.0.1<br>
> s=-<br>
> t=0 0<br>
> a=group:BUNDLE audio<br>
> a=msid-semantic: WMS 5aa672c6-f6ac-49ee-a7fa-758e85f1d569<br>
> m=audio 54843 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 126<br>
> c=IN IP4 184.173.227.184<br>
> a=rtcp:50649 IN IP4 184.173.227.184<br>
> a=candidate:2624638470 1 udp 2122260223 192.168.1.113 57019 typ host generation 0<br>
> a=candidate:2624638470 2 udp 2122260222 192.168.1.113 57020 typ host generation 0<br>
> a=candidate:3539153654 1 tcp 1518280447 192.168.1.113 0 typ host tcptype active generation 0<br>
> a=candidate:3539153654 2 tcp 1518280446 192.168.1.113 0 typ host tcptype active generation 0<br>
> a=candidate:2388703359 1 udp 25108223 184.173.227.184 54843 typ relay raddr 200.86.231.43 rport 2480 generation 0<br>
> a=candidate:2388703359 2 udp 25108222 184.173.227.184 50649 typ relay raddr 200.86.231.43 rport 2483 generation 0<br>
> a=candidate:296579010 1 udp 25108223 46.37.165.198 51332 typ relay raddr 200.86.231.43 rport 2486 generation 0<br>
> a=candidate:296579010 2 udp 25108222 46.37.165.198 61376 typ relay raddr 200.86.231.43 rport 2489 generation 0<br>
> a=candidate:296579010 1 udp 8331007 46.37.165.198 63945 typ relay raddr 200.86.231.43 rport 2485 generation 0<br>
> a=candidate:296579010 1 udp 8331007 46.37.165.198 64219 typ relay raddr 200.86.231.43 rport 2484 generation 0<br>
> a=candidate:296579010 2 udp 8331006 46.37.165.198 52149 typ relay raddr 200.86.231.43 rport 2488 generation 0<br>
> a=candidate:296579010 2 udp 8331006 46.37.165.198 61407 typ relay raddr 200.86.231.43 rport 2487 generation 0<br>
> a=ice-ufrag:6aKotQHXO+YIa4SB<br>
> a=ice-pwd:x26eZydsmKS3CujQnJt+yagB<br>
> a=fingerprint:sha-256 9C:A5:CB:27:A8:B1:3D:4D:41:1A:F5:2A:B7:60:B9:06:6B:A3:A4:8F:5A:F6:AD:1D:50:28:E5:AE:28:70:28:AD<br>
> a=setup:actpass<br>
> a=mid:audio<br>
> b=AS:96<br>
> a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level<br>
> a=extmap:3 <a href="http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time" rel="noreferrer" target="_blank">http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time</a><br>
> a=sendrecv<br>
> a=rtcp-mux<br>
> a=rtpmap:111 opus/48000/2<br>
> a=fmtp:111 useinbandfec=1; usedtx=0; maxplaybackrate=48000; sprop-maxcapturerate=48000; maxaveragebitrate=64000;<br>
> sprop-stereo=0; stereo=0<br>
> a=rtpmap:103 ISAC/16000<br>
> a=rtpmap:104 ISAC/32000<br>
> a=rtpmap:9 G722/8000<br>
> a=rtpmap:0 PCMU/8000<br>
> a=rtpmap:8 PCMA/8000<br>
> a=rtpmap:126 telephone-event/8000<br>
> a=maxptime:60<br>
> a=ssrc:3496827522 cname:useDs2Io3ldUsLU6<br>
> a=ssrc:3496827522 msid:5aa672c6-f6ac-49ee-a7fa-758e85f1d569 687fb926-afe8-433f-8b82-793d1e6f2f2a<br>
> a=ssrc:3496827522 mslabel:5aa672c6-f6ac-49ee-a7fa-758e85f1d569<br>
> a=ssrc:3496827522 label:687fb926-afe8-433f-8b82-793d1e6f2f2a<br>
><br>
><br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">
<p><font face="courier new, monospace"><b><i><font size="4">Brian West</font></i></b><br><span style="font-size:x-small"><a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a></span></font></p>
<p><font size="1" face="courier new, monospace"><img src="http://billing.freeswitch.org/templates/default/img/whmcslogo.png"><br></font></p><p><font size="2" face="monospace, monospace"><b><i>Twitter: @FreeSWITCH , @briankwest</i></b><br><a href="http://www.freeswitchbook.com" target="_blank">http://www.freeswitchbook.com</a><br><a href="http://www.freeswitchcookbook.com" target="_blank">http://www.freeswitchcookbook.com</a></font></p><p><font face="monospace, monospace">Got Bugs? Report them <a href="https://freeswitch.org/jira" target="_blank">here</a>! | Reddit: <a href="https://www.reddit.com/r/freeswitch" target="_blank">/r/freeswitch</a></font></p>
<p><font size="2" face="monospace, monospace"><b>T:</b>+19184209001 | <b>F:</b>+19184209002 | <b>M:</b>+1918424WEST (9378)<br><b>iNUM:</b>+883 5100 1420 9001 | <b>ISN:</b>410*543 | <b>Skype:</b>briankwest</font></p></div></div></div></div></div></div></div></div></div></div>
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