webrtc - 为什么我的WebRTC连接在某些网络上无效？

我已定制Apprtc项目（Android版）。假设我们有四个互联网连接（来自不同的网络连接）：

NetA - NetB

NetC - NetD

我可以从NetA连接到NetB，但我无法从NetC连接到NetD！

我设置了turn server和stun server，但我不知道出了什么问题。

从NetA连接到NetB（成功）时：

提供SDP：

＆＃34; v = 0 \ r \ no = - 632333030865012591 2 IN IP4 127.0.0.1 \ r \ ns = - \ r \ nt = 0 0 \ r \ na = group：BUNDLE audio video \ r \ nn na = msid-semantic：WMS ARDAMS ___ \ r \ nm = audio 9 UDP / TLS / RTP / SAVPF 111 103 9 102 0 8 105 13 126 \ r \ nc = IN IP4 0.0.0.0 \ r \ nn = rtcp：9 IN IP4 ..............＆＃34;

＆＃34;候选人：2580031558 1 udp 2122260223 100.95.184.57 37422 typ host generation 0 ufrag NL4P network-id 3 network-cost 900＆＃34;

＆＃34;候选人：411053810 1 udp 1686052607 5.116.182.156 1026 typ srflx raddr 100.95.184.57 rport 37422 generation 0 ufrag NL4P network-id 3 network-cost 900＆＃34;

＆＃34;候选人：3902036248 1 udp 41885695 34.197.185.148 52061 typ relay raddr 5.116.182.156 rport 1026 generation 0 ufrag NL4P network-id 3 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2786567656 1 udp 25108223 34.197.185.148 52062 typ relay raddr 5.116.182.156 rport 1032 generation 0 ufrag NL4P network-id 3 network-cost 900＆＃34;

回答SDP：

＆＃34; v = 0 \ r \ no = - 3736097442176838392 2 IN IP4 127.0.0.1 \ r \ ns = - \ r \ nt = 0 0 \ r \ na = group：BUNDLE audio video \ r \ nn na = msid-semantic：WMS ARDAMS ___ \ r \ nm = audio 9 UDP / TLS / RTP / SAVPF 111 103 9 102 0 8 105 13 126 \ r \ nc = IN IP4 0.0.0.0 \ r \ nn = rtcp：9 IN IP4 0.0.0.0 \ r \ NA =冰冷ufrag：7upj \ r \呐............＆＃34;

＆＃34;候选人：1892013251 1 udp 2122260223 192.168.7.7 37718 typ host generation 0 ufrag 7upj network-id 3 network-cost 10＆＃34;

＆＃34;候选人：3650771734 1 udp 1686052607 151.242.87.74 37718 typ srflx raddr 192.168.7.7 rport 37718 generation 0 ufrag 7upj network-id 3 network-cost 10＆＃34;

＆＃34;候选人：3902036248 1 udp 41885695 34.197.185.148 52063 typ relay raddr 151.242.87.74 rport 37718 generation 0 ufrag 7upj network-id 3 network-cost 10＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2786567656 1 udp 25108223 34.197.185.148 52064 typ relay raddr 151.242.87.74 rport 45889 generation 0 ufrag 7upj network-id 3 network-cost 10＆＃34;

从NetC连接到NetD（失败）时：

提供SDP：

＆＃34; v = 0 \ r \ no = - 280763199112942253 2 IN IP4 127.0.0.1 \ r \ ns = - \ r \ nt = 0 0 \ r \ na = group：BUNDLE audio video \ r \ nn na = msid-semantic：WMS ARDAMS ___ \ r \ nm = audio 9 UDP / TLS / RTP / SAVPF 111 103 9 102 0 8 105 13 126 \ r \ nc = IN IP4 0.0.0.0 \ r \ nn = rtcp：9 IN IP4 0.0.0.0 \ r \ NA =冰冷ufrag：UPpi \ r \ NA =冰冷PWD：Ow2J0AHuS86I0o0yZ5MOv6a / \ r \ NA =冰冷选项：再提名\ r \ NA =指纹：SHA-256 ...... ...........＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2580031558 1 udp 2122260223 100.95.184.57 34267 typ host generation 0 ufrag UPpi network-id 3 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：411053810 1 udp 1686052607 5.116.182.156 1287 typ srflx raddr 100.95.184.57 rport 34267 generation 0 ufrag UPpi network-id 3 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：3902036248 1 udp 41885695 34.197.185.148 58779 typ relay raddr 5.116.182.156 rport 1287 generation 0 ufrag UPpi network-id 3 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2786567656 1 udp 25108223 34.197.185.148 58780 typ relay raddr 5.116.182.156 rport 1201 generation 0 ufrag UPpi network-id 3 network-cost 900＆＃34;

回答SDP：

＆＃34; v = 0 \ r \ no = - 6478139475592243492 2 IN IP4 127.0.0.1 \ r \ ns = - \ r \ nt = 0 0 \ r \ na = group：BUNDLE audio video \ r \ nn na = msid-semantic：WMS ARDAMS ___ \ r \ nm = audio 9 UDP / TLS / RTP / SAVPF 111 103 9 102 0 8 105 13 126 \ r \ nc = IN IP4 0.0.0.0 \ r \ nn = rtcp：9 IN IP4 0.0.0.0 \ r \ nn = ice-ufrag：Js6x \ r \ n = na-ice-pwd：5tyUT023mAERirumK7aal + 9F \ r \ nn = na-ice-options：renomination \ r \ na = fingerprint：sha-256 45：97：7F ：BC：37：90：4D：B6：35：E5：23：C8：12：09：5A：43：D7：4B：03：EC：A0：7B：70：EB：E4：DB：12：B8 ：7B：1C：6E：5D \ r \ NA =设置：活性..............＆＃34;

＆＃34;候选＆＃34;＆＃34;标签＆＃34;：0，＆＃34; ID＆＃34;：＆＃34;音频＆＃34;＆＃34;候选＆＃34 ;: ＆＃34;候选人：1106113138 1 udp 2122260223 192.168.1.169 44238 typ host generation 0 ufrag Js6x network-id 3 network-cost 10＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：3232101574 1 udp 1686052607 151.247.139.59 44238 typ srflx raddr 192.168.1.169 rport 44238 generation 0 ufrag Js6x network-id 3 network-cost 10＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：3902036248 1 udp 41885695 34.197.185.148 58781 typ relay raddr 151.247.139.59 rport 44238 generation 0 ufrag Js6x network-id 3 network-cost 10＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2786567656 1 udp 25108223 34.197.185.148 58782 typ relay raddr 151.247.139.59 rport 36519 generation 0 ufrag Js6x network-id 3 network-cost 10＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：238873586 1 udp 2122194687 100.116.182.76 48966 typ host generation 0 ufrag Js6x network-id 4 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：3266434145 1 udp 1685987071 91.251.147.158 16369 typ srflx raddr 100.116.182.76 rport 48966 generation 0 ufrag Js6x network-id 4 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：3902036248 1 udp 41820159 34.197.185.148 58783 typ relay raddr 91.251.147.158 rport 16369 generation 0 ufrag Js6x network-id 4 network-cost 900＆＃34;

＆＃34;候选人＆＃34;：＆＃34;候选人：2786567656 1 udp 25042687 34.197.185.148 58784 typ relay raddr 91.251.147.158 rport 16222 generation 0 ufrag Js6x network-id 4 network-cost 900＆＃34;

编辑：

感谢所有人。我发现我的问题来自我的转机服务器。在使用appr.tc冰服务器（谷歌转服务器）时，我可以在任何情况下连接。但是我无法与我的转弯服务器连接。请在此页面查看有关我的转弯服务器的问题：

Why my turn server doesn't work?

为什么我的WebRTC连接在某些网络上无效？

2 个答案: