Соединение WebRT C работает в одной сети, но не работает в другой сети. Я использую сервер STUN по умолчанию (конфигурация нулевая). Оба компьютера подключены к одной сети через WiFi. Браузеры Chrome v80 на MAC v10.14 / v10.15 Он отключается, когда ПК имеют одинаковое и разное разрешение.
Я успешно отправляю предложение / ответ и обмениваю кандидатов в ICE обеими сторонами, соединение достигает состояния: signalingState=stable, iceConnectionState=checking и после этого отключается: signalingState=stable, iceConnectionState=disconnected Ошибка не выдается.
Это запрос ПРЕДЛОЖЕНИЯ с кандидатами:
"v=0
o=- 1918312373894049518 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE 0 1
a=msid-semantic: WMS VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD
m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 102 122 127 121 125 107 108 109 124 120 123 119 114 115 116
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:c+e9
a=ice-pwd:Iuq40drPvvQWqZ1HGHHgfg2X
a=ice-options:trickle
a=fingerprint:sha-256 31:53:62:4A:19:03:D4:3C:B4:F8:98:1F:75:A7:13:B8:EF:8F:C8:D2:DF:DC:F1:0C:BF:E3:4A:44:94:BD:B7:83
a=setup:actpass
a=mid:0
a=extmap:14 urn:ietf:params:rtp-hdrext:toffset
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:13 urn:3gpp:video-orientation
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:12 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
a=extmap:11 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type
a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-timing
a=extmap:8 http://tools.ietf.org/html/draft-ietf-avtext-framemarking-07
a=extmap:9 http://www.webrtc.org/experiments/rtp-hdrext/color-space
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=extmap:5 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id
a=extmap:6 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id
a=sendrecv
a=msid:VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD 77712c39-0b41-4d0b-80a6-d7d9926c2e19
a=rtcp-mux
a=rtcp-rsize
a=rtpmap:96 VP8/90000
a=rtcp-fb:96 goog-remb
a=rtcp-fb:96 transport-cc
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack
a=rtcp-fb:96 nack pli
a=rtpmap:97 rtx/90000
a=fmtp:97 apt=96
a=rtpmap:98 VP9/90000
a=rtcp-fb:98 goog-remb
a=rtcp-fb:98 transport-cc
a=rtcp-fb:98 ccm fir
a=rtcp-fb:98 nack
a=rtcp-fb:98 nack pli
a=fmtp:98 profile-id=0
a=rtpmap:99 rtx/90000
a=fmtp:99 apt=98
a=rtpmap:100 VP9/90000
a=rtcp-fb:100 goog-remb
a=rtcp-fb:100 transport-cc
a=rtcp-fb:100 ccm fir
a=rtcp-fb:100 nack
a=rtcp-fb:100 nack pli
a=fmtp:100 profile-id=2
a=rtpmap:101 rtx/90000
a=fmtp:101 apt=100
a=rtpmap:102 H264/90000
a=rtcp-fb:102 goog-remb
a=rtcp-fb:102 transport-cc
a=rtcp-fb:102 ccm fir
a=rtcp-fb:102 nack
a=rtcp-fb:102 nack pli
a=fmtp:102 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
a=rtpmap:122 rtx/90000
a=fmtp:122 apt=102
a=rtpmap:127 H264/90000
a=rtcp-fb:127 goog-remb
a=rtcp-fb:127 transport-cc
a=rtcp-fb:127 ccm fir
a=rtcp-fb:127 nack
a=rtcp-fb:127 nack pli
a=fmtp:127 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42001f
a=rtpmap:121 rtx/90000
a=fmtp:121 apt=127
a=rtpmap:125 H264/90000
a=rtcp-fb:125 goog-remb
a=rtcp-fb:125 transport-cc
a=rtcp-fb:125 ccm fir
a=rtcp-fb:125 nack
a=rtcp-fb:125 nack pli
a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
a=rtpmap:107 rtx/90000
a=fmtp:107 apt=125
a=rtpmap:108 H264/90000
a=rtcp-fb:108 goog-remb
a=rtcp-fb:108 transport-cc
a=rtcp-fb:108 ccm fir
a=rtcp-fb:108 nack
a=rtcp-fb:108 nack pli
a=fmtp:108 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f
a=rtpmap:109 rtx/90000
a=fmtp:109 apt=108
a=rtpmap:124 H264/90000
a=rtcp-fb:124 goog-remb
a=rtcp-fb:124 transport-cc
a=rtcp-fb:124 ccm fir
a=rtcp-fb:124 nack
a=rtcp-fb:124 nack pli
a=fmtp:124 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=4d0032
a=rtpmap:120 rtx/90000
a=fmtp:120 apt=124
a=rtpmap:123 H264/90000
a=rtcp-fb:123 goog-remb
a=rtcp-fb:123 transport-cc
a=rtcp-fb:123 ccm fir
a=rtcp-fb:123 nack
a=rtcp-fb:123 nack pli
a=fmtp:123 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640032
a=rtpmap:119 rtx/90000
a=fmtp:119 apt=123
a=rtpmap:114 red/90000
a=rtpmap:115 rtx/90000
a=fmtp:115 apt=114
a=rtpmap:116 ulpfec/90000
a=ssrc-group:FID 2204483179 727304564
a=ssrc:2204483179 cname:BZZUdcK8yex5XUOS
a=ssrc:2204483179 msid:VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD 77712c39-0b41-4d0b-80a6-d7d9926c2e19
a=ssrc:2204483179 mslabel:VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD
a=ssrc:2204483179 label:77712c39-0b41-4d0b-80a6-d7d9926c2e19
a=ssrc:727304564 cname:BZZUdcK8yex5XUOS
a=ssrc:727304564 msid:VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD 77712c39-0b41-4d0b-80a6-d7d9926c2e19
a=ssrc:727304564 mslabel:VMoywDECbWIZecM33M11MCLTtCGocmtiL9dD
a=ssrc:727304564 label:77712c39-0b41-4d0b-80a6-d7d9926c2e19
m=application 9 UDP/DTLS/SCTP webrtc-datachannel
c=IN IP4 0.0.0.0
a=ice-ufrag:c+e9
a=ice-pwd:Iuq40drPvvQWqZ1HGHHgfg2X
a=ice-options:trickle
a=fingerprint:sha-256 31:53:62:4A:19:03:D4:3C:B4:F8:98:1F:75:A7:13:B8:EF:8F:C8:D2:DF:DC:F1:0C:BF:E3:4A:44:94:BD:B7:83
a=setup:actpass
a=mid:1
a=sctp-port:5000
a=max-message-size:262144
"
"candidate:779392416 1 udp 2122260223 172.20.81.37 53364 typ host generation 0 ufrag c+e9 network-id 1 network-cost 10"
"candidate:779392416 1 udp 2122260223 172.20.81.37 49615 typ host generation 0 ufrag c+e9 network-id 1 network-cost 10"
"candidate:1626827088 1 tcp 1518280447 172.20.81.37 9 typ host tcptype active generation 0 ufrag c+e9 network-id 1 network-cost 10"
"candidate:1626827088 1 tcp 1518280447 172.20.81.37 9 typ host tcptype active generation 0 ufrag c+e9 network-id 1 network-cost 10"
Это запрос ОТВЕТ с кандидатами:
"v=0
o=- 6965597330662106262 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE 0 1
a=msid-semantic: WMS
m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 102 122 127 121 125 107 108 109 124 120 123 119 114 115 116
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:hbTb
a=ice-pwd:tlvpx+snVxtXuCDH4gdrODOF
a=ice-options:trickle
a=fingerprint:sha-256 89:06:89:A5:E3:A5:67:DE:68:BC:61:FC:CC:11:1E:14:97:18:54:DD:3D:FB:26:9D:B6:64:E7:B4:8B:2F:83:B8
a=setup:active
a=mid:0
a=extmap:14 urn:ietf:params:rtp-hdrext:toffset
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:13 urn:3gpp:video-orientation
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:12 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
a=extmap:11 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type
a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-timing
a=extmap:8 http://tools.ietf.org/html/draft-ietf-avtext-framemarking-07
a=extmap:9 http://www.webrtc.org/experiments/rtp-hdrext/color-space
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=extmap:5 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id
a=extmap:6 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id
a=recvonly
a=rtcp-mux
a=rtcp-rsize
a=rtpmap:96 VP8/90000
a=rtcp-fb:96 goog-remb
a=rtcp-fb:96 transport-cc
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack
a=rtcp-fb:96 nack pli
a=rtpmap:97 rtx/90000
a=fmtp:97 apt=96
a=rtpmap:98 VP9/90000
a=rtcp-fb:98 goog-remb
a=rtcp-fb:98 transport-cc
a=rtcp-fb:98 ccm fir
a=rtcp-fb:98 nack
a=rtcp-fb:98 nack pli
a=fmtp:98 profile-id=0
a=rtpmap:99 rtx/90000
a=fmtp:99 apt=98
a=rtpmap:100 VP9/90000
a=rtcp-fb:100 goog-remb
a=rtcp-fb:100 transport-cc
a=rtcp-fb:100 ccm fir
a=rtcp-fb:100 nack
a=rtcp-fb:100 nack pli
a=fmtp:100 profile-id=2
a=rtpmap:101 rtx/90000
a=fmtp:101 apt=100
a=rtpmap:102 H264/90000
a=rtcp-fb:102 goog-remb
a=rtcp-fb:102 transport-cc
a=rtcp-fb:102 ccm fir
a=rtcp-fb:102 nack
a=rtcp-fb:102 nack pli
a=fmtp:102 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
a=rtpmap:122 rtx/90000
a=fmtp:122 apt=102
a=rtpmap:127 H264/90000
a=rtcp-fb:127 goog-remb
a=rtcp-fb:127 transport-cc
a=rtcp-fb:127 ccm fir
a=rtcp-fb:127 nack
a=rtcp-fb:127 nack pli
a=fmtp:127 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42001f
a=rtpmap:121 rtx/90000
a=fmtp:121 apt=127
a=rtpmap:125 H264/90000
a=rtcp-fb:125 goog-remb
a=rtcp-fb:125 transport-cc
a=rtcp-fb:125 ccm fir
a=rtcp-fb:125 nack
a=rtcp-fb:125 nack pli
a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
a=rtpmap:107 rtx/90000
a=fmtp:107 apt=125
a=rtpmap:108 H264/90000
a=rtcp-fb:108 goog-remb
a=rtcp-fb:108 transport-cc
a=rtcp-fb:108 ccm fir
a=rtcp-fb:108 nack
a=rtcp-fb:108 nack pli
a=fmtp:108 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f
a=rtpmap:109 rtx/90000
a=fmtp:109 apt=108
a=rtpmap:124 H264/90000
a=rtcp-fb:124 goog-remb
a=rtcp-fb:124 transport-cc
a=rtcp-fb:124 ccm fir
a=rtcp-fb:124 nack
a=rtcp-fb:124 nack pli
a=fmtp:124 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=4d0032
a=rtpmap:120 rtx/90000
a=fmtp:120 apt=124
a=rtpmap:123 H264/90000
a=rtcp-fb:123 goog-remb
a=rtcp-fb:123 transport-cc
a=rtcp-fb:123 ccm fir
a=rtcp-fb:123 nack
a=rtcp-fb:123 nack pli
a=fmtp:123 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640032
a=rtpmap:119 rtx/90000
a=fmtp:119 apt=123
a=rtpmap:114 red/90000
a=rtpmap:115 rtx/90000
a=fmtp:115 apt=114
a=rtpmap:116 ulpfec/90000
m=application 9 UDP/DTLS/SCTP webrtc-datachannel
c=IN IP4 0.0.0.0
b=AS:30
a=ice-ufrag:hbTb
a=ice-pwd:tlvpx+snVxtXuCDH4gdrODOF
a=ice-options:trickle
a=fingerprint:sha-256 89:06:89:A5:E3:A5:67:DE:68:BC:61:FC:CC:11:1E:14:97:18:54:DD:3D:FB:26:9D:B6:64:E7:B4:8B:2F:83:B8
a=setup:active
a=mid:1
a=sctp-port:5000
a=max-message-size:262144
"
"candidate:1540403324 1 udp 2122260223 192.168.8.64 50673 typ host generation 0 ufrag hbTb network-id 2"
"candidate:1160182379 1 udp 2122194687 172.20.82.155 58660 typ host generation 0 ufrag hbTb network-id 1 network-cost 10"
"candidate:357780620 1 tcp 1518280447 192.168.8.64 9 typ host tcptype active generation 0 ufrag hbTb network-id 2"
"candidate:195364507 1 tcp 1518214911 172.20.82.155 9 typ host tcptype active generation 0 ufrag hbTb network-id 1 network-cost 10"