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- # tcpdump -nqt -s 0 -A -vvv -i eth0 port 5060
- tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
- IP (tos 0x10, ttl 64, id 7841, offset 0, flags [DF], proto UDP (17), length 32)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0a96 -> 0x3070!] UDP, length 4
- E.. ..@.@......n.......)..
- .....
- IP (tos 0x10, ttl 64, id 56244, offset 0, flags [DF], proto UDP (17), length 32)
- 162.249.6.110.sip > 94.197.121.154.62788: [bad udp cksum 0x81e4 -> 0x7506!] UDP, length 4
- E.. ..@.@..A...n^.y....D........
- IP (tos 0x0, ttl 49, id 57210, offset 0, flags [DF], proto UDP (17), length 882)
- 94.197.121.154.62788 > 162.249.6.110.sip: [udp sum ok] UDP, length 854
- E..r.z@.1..9^.y....n.D...^..INVITE sip:+447479189410@domain.com;transport=udp SIP/2.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;rport;branch=z9hG4bK34177
- Max-Forwards: 70
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Contact: <sip:+447984977774@10.121.239.28:33940;transport=udp>
- Expires: 3600
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 375
- Content-Type: application/sdp
- v=0
- o=user 0 0 IN IP4 10.121.239.28
- s=Session SIP/SDP
- c=IN IP4 10.121.239.28
- t=0 0
- a=ice-ufrag:fcpie
- a=ice-pwd:5jmr7tq9hg8p1bksamspm6ui4i
- m=audio 21000 RTP/AVP 201 101
- a=rtpmap:201 OPUS/48000
- a=rtpmap:101 telephone-event/8000
- a=fmtp:101 0-15
- a=candidate:1 1 udp 2130706431 10.121.239.28 21000 typ host
- a=candidate:1 2 udp 2130706430 10.121.239.28 21001 typ host
- IP (tos 0x10, ttl 64, id 56245, offset 0, flags [DF], proto UDP (17), length 375)
- 162.249.6.110.sip > 94.197.121.154.62788: [bad udp cksum 0x833b -> 0x0f49!] UDP, length 347
- E..w..@.@......n^.y....D.c.;SIP/2.0 100 Giving a try
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Server: OpenSIPS (2.1.1 (x86_64/linux))
- Content-Length: 0
- IP (tos 0x10, ttl 64, id 7842, offset 0, flags [DF], proto UDP (17), length 1033)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0e7f -> 0x8e53!] UDP, length 1005
- ....n.......)....INVITE sip:+447479189410@10.45.155.206:49148;transport=udp SIP/2.0
- Record-Route: <sip:162.249.6.110;lr;nat=yes>
- Via: SIP/2.0/UDP 162.249.6.110:5060;branch=z9hG4bK7432.36a62733.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- Max-Forwards: 69
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Contact: <sip:+447984977774@94.197.121.154:62788;transport=udp>
- Expires: 3600
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 375
- Content-Type: application/sdp
- v=0
- o=user 0 0 IN IP4 10.121.239.28
- s=Session SIP/SDP
- c=IN IP4 10.121.239.28
- t=0 0
- a=ice-ufrag:fcpie
- a=ice-pwd:5jmr7tq9hg8p1bksamspm6ui4i
- m=audio 21000 RTP/AVP 201 101
- a=rtpmap:201 OPUS/48000
- a=rtpmap:101 telephone-event/8000
- a=fmtp:101 0-15
- a=candidate:1 1 udp 2130706431 10.121.239.28 21000 typ host
- a=candidate:1 2 udp 2130706430 10.121.239.28 21001 typ host
- IP (tos 0x10, ttl 64, id 7843, offset 0, flags [DF], proto UDP (17), length 1033)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0e7f -> 0x8e53!] UDP, length 1005
- ....n.......)....INVITE sip:+447479189410@10.45.155.206:49148;transport=udp SIP/2.0
- Record-Route: <sip:162.249.6.110;lr;nat=yes>
- Via: SIP/2.0/UDP 162.249.6.110:5060;branch=z9hG4bK7432.36a62733.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- Max-Forwards: 69
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Contact: <sip:+447984977774@94.197.121.154:62788;transport=udp>
- Expires: 3600
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 375
- Content-Type: application/sdp
- v=0
- o=user 0 0 IN IP4 10.121.239.28
- s=Session SIP/SDP
- c=IN IP4 10.121.239.28
- t=0 0
- a=ice-ufrag:fcpie
- a=ice-pwd:5jmr7tq9hg8p1bksamspm6ui4i
- m=audio 21000 RTP/AVP 201 101
- a=rtpmap:201 OPUS/48000
- a=rtpmap:101 telephone-event/8000
- a=fmtp:101 0-15
- a=candidate:1 1 udp 2130706431 10.121.239.28 21000 typ host
- a=candidate:1 2 udp 2130706430 10.121.239.28 21001 typ host
- IP (tos 0x10, ttl 64, id 7844, offset 0, flags [DF], proto UDP (17), length 1033)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0e7f -> 0x8e53!] UDP, length 1005
- ....n.......)....INVITE sip:+447479189410@10.45.155.206:49148;transport=udp SIP/2.0
- Record-Route: <sip:162.249.6.110;lr;nat=yes>
- Via: SIP/2.0/UDP 162.249.6.110:5060;branch=z9hG4bK7432.36a62733.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- Max-Forwards: 69
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Contact: <sip:+447984977774@94.197.121.154:62788;transport=udp>
- Expires: 3600
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 375
- Content-Type: application/sdp
- v=0
- o=user 0 0 IN IP4 10.121.239.28
- s=Session SIP/SDP
- c=IN IP4 10.121.239.28
- t=0 0
- a=ice-ufrag:fcpie
- a=ice-pwd:5jmr7tq9hg8p1bksamspm6ui4i
- m=audio 21000 RTP/AVP 201 101
- a=rtpmap:201 OPUS/48000
- a=rtpmap:101 telephone-event/8000
- a=fmtp:101 0-15
- a=candidate:1 1 udp 2130706431 10.121.239.28 21000 typ host
- a=candidate:1 2 udp 2130706430 10.121.239.28 21001 typ host
- IP (tos 0x10, ttl 64, id 7845, offset 0, flags [DF], proto UDP (17), length 1033)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0e7f -> 0x8e53!] UDP, length 1005
- ....n.......)....INVITE sip:+447479189410@10.45.155.206:49148;transport=udp SIP/2.0
- Record-Route: <sip:162.249.6.110;lr;nat=yes>
- Via: SIP/2.0/UDP 162.249.6.110:5060;branch=z9hG4bK7432.36a62733.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- Max-Forwards: 69
- To: <sip:+447479189410@domain.com;transport=udp>
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Contact: <sip:+447984977774@94.197.121.154:62788;transport=udp>
- Expires: 3600
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 375
- Content-Type: application/sdp
- v=0
- o=user 0 0 IN IP4 10.121.239.28
- s=Session SIP/SDP
- c=IN IP4 10.121.239.28
- t=0 0
- a=ice-ufrag:fcpie
- a=ice-pwd:5jmr7tq9hg8p1bksamspm6ui4i
- m=audio 21000 RTP/AVP 201 101
- a=rtpmap:201 OPUS/48000
- a=rtpmap:101 telephone-event/8000
- a=fmtp:101 0-15
- a=candidate:1 1 udp 2130706431 10.121.239.28 21000 typ host
- a=candidate:1 2 udp 2130706430 10.121.239.28 21001 typ host
- IP (tos 0x10, ttl 64, id 7846, offset 0, flags [DF], proto UDP (17), length 32)
- 162.249.6.110.sip > 188.29.164.243.45353: [bad udp cksum 0x0a96 -> 0x3070!] UDP, length 4
- E.. ..@.@......n.......)..
- .....
- IP (tos 0x10, ttl 64, id 56246, offset 0, flags [DF], proto UDP (17), length 420)
- 162.249.6.110.sip > 94.197.121.154.62788: [bad udp cksum 0x8368 -> 0xe180!] UDP, length 392
- E.....@.@......n^.y....D...hSIP/2.0 408 Request Timeout
- Via: SIP/2.0/UDP 10.121.239.28:33940;received=94.197.121.154;rport=62788;branch=z9hG4bK34177
- To: <sip:+447479189410@domain.com;transport=udp>;tag=364660755d8ca6c0205a1abd0319a354-02a7
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 INVITE
- Server: OpenSIPS (2.1.1 (x86_64/linux))
- Content-Length: 0
- IP (tos 0x0, ttl 49, id 57211, offset 0, flags [DF], proto UDP (17), length 431)
- 94.197.121.154.62788 > 162.249.6.110.sip: [udp sum ok] UDP, length 403
- E....{@.1...^.y....n.D......ACK sip:+447479189410@domain.com;transport=udp SIP/2.0
- Via: SIP/2.0/UDP 10.121.239.28:33940;rport;branch=z9hG4bK34177
- Max-Forwards: 70
- To: <sip:+447479189410@domain.com;transport=udp>;tag=364660755d8ca6c0205a1abd0319a354-02a7
- From: <sip:+447984977774@domain.com>;tag=z9hG4bK66305466
- Call-ID: 720153239504@10.121.239.28
- CSeq: 1 ACK
- User-Agent: domain/1.6.1/ONE A2003
- Content-Length: 0
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