Hi, I set up the gst-rtsp as the streaming server with port as 80.And used the realone player as the streaming client..Client tried for TCP connection in wan but the gst-rtp server got crashed!!! I am attaching a wiredshark file of the communicaiton together with this mail.Following is the log in server side. ** Message: listening on port 80 ** Message: added new client 0x81be2f0 ip <a href="http://114.143.222.36:60190">114.143.222.36:60190</a> ** Message: attaching to context 0x81bb248 RTSP request message 0x82ac08c request line: method: 'OPTIONS' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80">carinov.dyndns.biz:80</a>' version: '1.0' headers: key: 'CSeq', value: '1' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' key: 'Supported', value: 'ABD-1.0' key: 'ClientChallenge', value: '5103f5143fc70aaca4f1205914c8430f' key: 'ClientID', value: 'WinNT_5.2_6.0.14.955_RealPlayer_R41APR_en_686' key: 'CompanyID', value: 'GESIEDtQhMtEOsfFgdik+w==' key: 'GUID', value: '00000000-0000-0000-0000-000000000000' key: 'PlayerStarttime', value: '[23/07/2009:17:52:08 05:00]' key: 'RegionData', value: '0' body: ** Message: client 0x81be2f0: received a request RTSP response message 0xbfcaec04 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '1' key: 'Public', value: 'OPTIONS, DESCRIBE, GET_PARAMETER, PAUSE, PLAY, SETUP, SET_PARAMETER, TEARDOWN' key: 'Server', value: 'GStreamer RTSP server' body: length 0 ** Message: client 0x81be2f0: sent a message with cseq 1 RTSP request message 0x82ac08c request line: method: 'DESCRIBE' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4">carinov.dyndns.biz:80/test.mp4</a>' version: '1.0' headers: key: 'CSeq', value: '2' key: 'Accept', value: 'application/sdp' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' key: 'Bandwidth', value: '1618928' key: 'ClientID', value: 'WinNT_5.2_6.0.14.955_RealPlayer_R41APR_en_686' key: 'GUID', value: '00000000-0000-0000-0000-000000000000' key: 'Language', value: 'en, *' key: 'RegionData', value: '0' key: 'Require', value: 'com.real.retain-entity-for-setup' key: 'SupportsMaximumASMBandwidth', value: '1' body: ** Message: client 0x81be2f0: received a request ** Message: found media 0x81e3c40 for url abspath /test.mp4 ** Message: enter mainloop ** Message: found stream 0 with payloader 0x82e60e8 ** Message: found stream 1 with payloader 0x82ea0d0 ** Message: constructed media 0x82ee038 for url /test.mp4 ** Message: preparing media 0x82ee038 ** Message: 0x82ee038: got message type tag ** Message: 0x82ee038: got message type tag ** Message: 0x82ee038: got message type tag ** Message: stream 0x82efda0 received caps 0x8341080, application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)1, streamtype=(string)5, profile-level-id=(string)1, mode=(string)AAC-hbr, config=(string)0d88, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, ssrc=(guint)3365720402, payload=(int)97, clock-base=(guint)1381310334, seqnum-base=(guint)52507 ** Message: stream 0x82efda0 received caps 0x8341080, application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)MPEG4-GENERIC, encoding-params=(string)1, streamtype=(string)5, profile-level-id=(string)1, mode=(string)AAC-hbr, config=(string)0d88, sizelength=(string)13, indexlength=(string)3, indexdeltalength=(string)3, ssrc=(guint)3365720402, payload=(int)97, clock-base=(guint)1381310334, seqnum-base=(guint)52507 ** Message: stream 0x82ede00 received caps 0x8330780, application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800f50a041e1463, ssrc=(guint)2466350439, payload=(int)96, clock-base=(guint)3798182893, seqnum-base=(guint)52588 ** Message: stream 0x82ede00 received caps 0x8330780, application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800f50a041e1463, ssrc=(guint)2466350439, payload=(int)96, clock-base=(guint)3798182893, seqnum-base=(guint)52588 ** Message: 0x82ee038: got message type async-done ** Message: stats: position 0:00:00.000000000, duration 0:00:31.533333333 ** Message: object 0x82ee038 is prerolled RTSP response message 0xbfcaebb0 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '2' key: 'Content-Type', value: 'application/sdp' key: 'Content-Base', value: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4/">carinov.dyndns.biz:80/test.mp4/</a>' key: 'Server', value: 'GStreamer RTSP server' body: length 577 00000000 (0x8351798): 76 3d 30 0d 0a 6f 3d 2d 20 31 31 38 38 33 34 30 v=0..o=- 1188340 00000010 (0x83517a8): 36 35 36 31 38 30 38 38 33 20 31 20 49 4e 20 49 656180883 1 IN I 00000020 (0x83517b8): 50 34 20 31 32 37 2e 30 2e 30 2e 31 0d 0a 73 3d P4 127.0.0.1..s= 00000030 (0x83517c8): 53 65 73 73 69 6f 6e 20 73 74 72 65 61 6d 65 64 Session streamed 00000040 (0x83517d8): 20 77 69 74 68 20 47 53 74 72 65 61 6d 65 72 0d with GStreamer. 00000050 (0x83517e8): 0a 69 3d 72 74 73 70 2d 73 65 72 76 65 72 0d 0a .i=rtsp-server.. 00000060 (0x83517f8): 65 3d 4e 4f 4e 45 0d 0a 74 3d 30 20 30 0d 0a 61 e=NONE..t=0 0..a 00000070 (0x8351808): 3d 74 6f 6f 6c 3a 47 53 74 72 65 61 6d 65 72 0d =tool:GStreamer. 00000080 (0x8351818): 0a 61 3d 74 79 70 65 3a 62 72 6f 61 64 63 61 73 .a=type:broadcas 00000090 (0x8351828): 74 0d 0a 61 3d 72 61 6e 67 65 3a 6e 70 74 3d 30 t..a=range:npt=0 000000a0 (0x8351838): 2e 30 30 30 30 30 30 2d 33 31 2e 35 33 33 33 33 .000000-31.53333 000000b0 (0x8351848): 33 0d 0a 6d 3d 76 69 64 65 6f 20 30 20 52 54 50 3..m=video 0 RTP 000000c0 (0x8351858): 2f 41 56 50 20 39 36 0d 0a 63 3d 49 4e 20 49 50 /AVP 96..c=IN IP 000000d0 (0x8351868): 34 20 31 32 37 2e 30 2e 30 2e 31 0d 0a 61 3d 72 4 127.0.0.1..a=r 000000e0 (0x8351878): 74 70 6d 61 70 3a 39 36 20 4d 50 34 56 2d 45 53 tpmap:96 MP4V-ES 000000f0 (0x8351888): 2f 39 30 30 30 30 0d 0a 61 3d 63 6f 6e 74 72 6f /90000..a=contro 00000100 (0x8351898): 6c 3a 73 74 72 65 61 6d 3d 30 0d 0a 61 3d 66 6d l:stream=0..a=fm 00000110 (0x83518a8): 74 70 3a 39 36 20 70 72 6f 66 69 6c 65 2d 6c 65 tp:96 profile-le 00000120 (0x83518b8): 76 65 6c 2d 69 64 3d 31 3b 63 6f 6e 66 69 67 3d vel-id=1;config= 00000130 (0x83518c8): 30 30 30 30 30 31 62 30 30 31 30 30 30 30 30 31 000001b001000001 00000140 (0x83518d8): 62 35 38 39 31 33 30 30 30 30 30 31 30 30 30 30 b589130000010000 00000150 (0x83518e8): 30 30 30 31 32 30 30 30 63 34 38 64 38 38 30 30 00012000c48d8800 00000160 (0x83518f8): 66 35 30 61 30 34 31 65 31 34 36 33 0d 0a 6d 3d f50a041e1463..m= 00000170 (0x8351908): 61 75 64 69 6f 20 30 20 52 54 50 2f 41 56 50 20 audio 0 RTP/AVP 00000180 (0x8351918): 39 37 0d 0a 63 3d 49 4e 20 49 50 34 20 31 32 37 97..c=IN IP4 127 00000190 (0x8351928): 2e 30 2e 30 2e 31 0d 0a 61 3d 72 74 70 6d 61 70 .0.0.1..a=rtpmap 000001a0 (0x8351938): 3a 39 37 20 4d 50 45 47 34 2d 47 45 4e 45 52 49 :97 MPEG4-GENERI 000001b0 (0x8351948): 43 2f 38 30 30 30 2f 31 0d 0a 61 3d 63 6f 6e 74 C/8000/1..a=cont 000001c0 (0x8351958): 72 6f 6c 3a 73 74 72 65 61 6d 3d 31 0d 0a 61 3d rol:stream=1..a= 000001d0 (0x8351968): 66 6d 74 70 3a 39 37 20 73 74 72 65 61 6d 74 79 fmtp:97 streamty 000001e0 (0x8351978): 70 65 3d 35 3b 70 72 6f 66 69 6c 65 2d 6c 65 76 pe=5;profile-lev 000001f0 (0x8351988): 65 6c 2d 69 64 3d 31 3b 6d 6f 64 65 3d 41 41 43 el-id=1;mode=AAC 00000200 (0x8351998): 2d 68 62 72 3b 63 6f 6e 66 69 67 3d 30 64 38 38 -hbr;config=0d88 00000210 (0x83519a8): 3b 73 69 7a 65 6c 65 6e 67 74 68 3d 31 33 3b 69 ;sizelength=13;i 00000220 (0x83519b8): 6e 64 65 78 6c 65 6e 67 74 68 3d 33 3b 69 6e 64 ndexlength=3;ind 00000230 (0x83519c8): 65 78 64 65 6c 74 61 6c 65 6e 67 74 68 3d 33 0d exdeltalength=3. 00000240 (0x83519d8): 0a . ** Message: client 0x81be2f0: sent a message with cseq 2 RTSP request message 0x82ac08c request line: method: 'SETUP' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4/stream=0">carinov.dyndns.biz:80/test.mp4/stream=0</a>' version: '1.0' headers: key: 'CSeq', value: '3' key: 'Transport', value: 'RTP/AVP/TCP;unicast;mode=play' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' body: ** Message: client 0x81be2f0: received a request ** Message: reusing cached media 0x82ee038 ** Message: manage new media 0x82ee038 in session 0x83510c8 RTSP response message 0xbfcaeb94 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '3' key: 'Transport', value: 'RTP/AVP/TCP;unicast;mode="PLAY"' key: 'Server', value: 'GStreamer RTSP server' key: 'Session', value: 'jiwhnllfisatvpvx' body: length 0 ** Message: client 0x81be2f0: sent a message with cseq 3 RTSP request message 0x82ac08c request line: method: 'SETUP' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4/stream=1">carinov.dyndns.biz:80/test.mp4/stream=1</a>' version: '1.0' headers: key: 'CSeq', value: '4' key: 'Transport', value: 'RTP/AVP/TCP;unicast;mode=play' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' key: 'Session', value: 'jiwhnllfisatvpvx' body: ** Message: client 0x81be2f0: received a request ** Message: watching session 0x8322390 RTSP response message 0xbfcaeb94 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '4' key: 'Transport', value: 'RTP/AVP/TCP;unicast;mode="PLAY"' key: 'Server', value: 'GStreamer RTSP server' key: 'Session', value: 'jiwhnllfisatvpvx' body: length 0 ** Message: client 0x81be2f0: sent a message with cseq 4 RTSP request message 0x82ac08c request line: method: 'SET_PARAMETER' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4">carinov.dyndns.biz:80/test.mp4</a>' version: '1.0' headers: key: 'CSeq', value: '5' key: 'Subscribe', value: 'stream=0;rule=0,stream=0;rule=1,stream=1;rule=0,stream=1;rule=1' key: 'Session', value: 'jiwhnllfisatvpvx' body: ** Message: client 0x81be2f0: received a request RTSP response message 0xbfcaea90 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '5' key: 'Server', value: 'GStreamer RTSP server' body: length 0 ** Message: client 0x81be2f0: sent a message with cseq 5 RTSP request message 0x82ac08c request line: method: 'PLAY' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4">carinov.dyndns.biz:80/test.mp4</a>' version: '1.0' headers: key: 'CSeq', value: '6' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' key: 'Session', value: 'jiwhnllfisatvpvx' key: 'Range', value: 'npt=0-31.533000' key: 'Bandwidth', value: '1618928' body: ** Message: client 0x81be2f0: received a request ** Message: test1 ** Message: test3 ** Message: test3: start=-1 ** Message: test5 ** Message: test5 stop has a diff val ** Message: test6 ** Message: no seek needed RTSP response message 0xbfcaeb78 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '6' key: 'RTP-Info', value: 'url=rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4/stream=0;seq=52588;rtptime=3798182893">carinov.dyndns.biz:80/test.mp4/stream=0;seq=52588;rtptime=3798182893</a>, url=rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4/stream=1;seq=52507;rtptime=1381310334">carinov.dyndns.biz:80/test.mp4/stream=1;seq=52507;rtptime=1381310334</a>' key: 'Range', value: 'npt=0.000000-31.533333' key: 'Server', value: 'GStreamer RTSP server' key: 'Session', value: 'jiwhnllfisatvpvx' body: length 0 ** Message: going to state PLAYING media 0x82ee038 ** Message: adding TCP 114.143.222.36 ** Message: adding TCP 114.143.222.36 ** Message: active 2 media 0x82ee038 ** Message: state PLAYING media 0x82ee038 ** Message: 0x82ee038: got message type new-clock ** Message: client 0x81be2f0: sent a message with cseq 6 RTSP request message 0x82ac08c request line: method: 'TEARDOWN' uri: 'rtsp://<a href="http://carinov.dyndns.biz:80/test.mp4">carinov.dyndns.biz:80/test.mp4</a>' version: '1.0' headers: key: 'CSeq', value: '7' key: 'User-Agent', value: 'RealMedia Player HelixDNAClient/10.0.1.338 (win32)' key: 'Session', value: 'jiwhnllfisatvpvx' body: ** Message: client 0x81be2f0: received a request ** Message: going to state NULL media 0x82ee038 ** Message: removing TCP 114.143.222.36 ** Message: removing TCP 114.143.222.36 ** Message: active 0 media 0x82ee038 ** Message: unprepare media 0x82ee038 ** Message: stream 0x82efda0 received caps (nil), NULL ** Message: stream 0x82ede00 received caps (nil), NULL ** Message: free session media 0x83510c8 ** Message: going to state NULL media 0x82ee038 ** Message: active 0 media 0x82ee038 ** Message: free session stream 0x82ac180 ** Message: free session stream 0x8352888 RTSP response message 0xbfcaeb40 status line: code: '200' reason: 'OK' version: '1.0' headers: key: 'CSeq', value: '7' key: 'Server', value: 'GStreamer RTSP server' key: 'Session', value: 'jiwhnllfisatvpvx' body: length 0 ** Message: finalize session 0x8322390 ** Message: client 0x81be2f0: received an error System error: Connection reset by peer ** Message: finalize client 0x81be2f0 ** Message: finalize media 0x82ee038 ** Message: added new client 0x83074c0 ip <a href="http://114.143.222.36:61214">114.143.222.36:61214</a> ** Message: attaching to context 0x81bb248 ** Message: client 0x83074c0: tunnel start ** Message: client 0x83074c0: inserting (null) Segmentation fault