11 -> 2# root@comcerto:~# tcpdump -vvv -i any port 5060 tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes 06:19:14.606958 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1291) localhost..6060 > localhost..5060: [bad udp cksum 0x030b -> 0x0c63!] SIP, length: 1263 INVITE sip:2%23@192.168.20.104 SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK257883665 From: ;tag=318688453 To: Call-ID: 1336512045 CSeq: 20 INVITE Contact: Content-Type: application/sdp Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE Max-Forwards: 70 User-Agent: eXosip/5.3.0 X-Endpoint-Type: FXS Allow-Events: conference Supported: replaces,timer,100rel Content-Length: 751 v=0 o=gateway 0 5 IN IP4 192.168.20.104 s=conversation c=IN IP4 192.168.20.104 t=0 0 m=audio 10002 RTP/SAVP 8 0 4 18 101 13 98 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:ZhV5AY8vsjiLORlUOnca02Ryyecak+CBG8U7s5lV a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:+uEx5Lbkpehtged3HbpxtbnyjiZW/Kk7exTnTn4Q a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=rtpmap:13 CN/8000 a=rtpmap:98 PCMA/8000 a=gpmd:98 vbd=yes m=audio 10002 RTP/AVP 8 0 4 18 101 13 98 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=rtpmap:13 CN/8000 a=rtpmap:98 PCMA/8000 a=gpmd:98 vbd=yes 06:19:14.630901 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1485) localhost..5060 > localhost..6060: [bad udp cksum 0x03cd -> 0x5b92!] SIP, length: 1457 INVITE sip:2%23@127.0.0.1:6060;transport=udp SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---fb353974ea9b5f79;rport Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 Max-Forwards: 69 Record-Route: Contact: To: From: ;tag=318688453 Call-ID: 1336512045 CSeq: 20 INVITE Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE Content-Type: application/sdp Supported: replaces, timer, 100rel User-Agent: eXosip/5.3.0 Allow-Events: conference X-Endpoint-Type: FXS X-Secure-Transport: yes Content-Length: 751 v=0 o=gateway 0 5 IN IP4 192.168.20.104 s=conversation c=IN IP4 192.168.20.104 t=0 0 m=audio 10002 RTP/SAVP 8 0 4 18 101 13 98 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:ZhV5AY8vsjiLORlUOnca02Ryyecak+CBG8U7s5lV a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:+uEx5Lbkpehtged3HbpxtbnyjiZW/Kk7exTnTn4Q a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=rtpmap:13 CN/8000 a=rtpmap:98 PCMA/8000 a=gpmd:98 vbd=yes m=audio 10002 RTP/AVP 8 0 4 18 101 13 98 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=rtpmap:13 CN/8000 a=rtpmap:98 PCMA/8000 a=gpmd:98 vbd=yes 06:19:14.639664 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 364) localhost..6060 > localhost..5060: [bad udp cksum 0xff6b -> 0x5cf8!] SIP, length: 336 SIP/2.0 100 Trying Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---fb353974ea9b5f79;rport=5060 Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 From: ;tag=318688453 To: Call-ID: 1336512045 CSeq: 20 INVITE User-Agent: eXosip/5.3.0 Content-Length: 0 06:19:14.707508 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 251) localhost..5060 > localhost..6060: [bad udp cksum 0xfefa -> 0xb3fb!] SIP, length: 223 SIP/2.0 100 Trying Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 To: From: ;tag=318688453 Call-ID: 1336512045 CSeq: 20 INVITE Content-Length: 0 06:19:14.780121 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1012) localhost..6060 > localhost..5060: [bad udp cksum 0x01f4 -> 0xd2b6!] SIP, length: 984 SIP/2.0 183 Session Progress Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---fb353974ea9b5f79;rport=5060 Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 Record-Route: From: ;tag=318688453 To: ;tag=896003446 Call-ID: 1336512045 CSeq: 20 INVITE Contact: Content-Type: application/sdp Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE User-Agent: eXosip/5.3.0 Allow-Events: conference Supported: replaces,timer,100rel Require: 100rel RSeq: 100 Content-Length: 328 v=0 o=gateway 0 0 IN IP4 192.168.20.104 s=conversation c=IN IP4 192.168.20.104 t=0 0 m=audio 12002 RTP/SAVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:MN/064Es+zKEXCOBeWwfHMBZBy58FIv9GW4n9NhR a=sendrecv m=audio 0 RTP/AVP 8 0 4 18 101 13 98 06:19:14.798195 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 935) localhost..5060 > localhost..6060: [bad udp cksum 0x01a7 -> 0x2269!] SIP, length: 907 SIP/2.0 183 Session Progress Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 Record-Route: Require: 100rel Contact: To: ;tag=896003446 From: ;tag=318688453 Call-ID: 1336512045 CSeq: 20 INVITE Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE Content-Type: application/sdp Supported: replaces, timer, 100rel User-Agent: eXosip/5.3.0 Allow-Events: conference RSeq: 100 Content-Length: 328 v=0 o=gateway 0 0 IN IP4 192.168.20.104 s=conversation c=IN IP4 192.168.20.104 t=0 0 m=audio 12002 RTP/SAVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:MN/064Es+zKEXCOBeWwfHMBZBy58FIv9GW4n9NhR a=sendrecv m=audio 0 RTP/AVP 8 0 4 18 101 13 98 06:19:14.809844 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 428) localhost..6060 > localhost..5060: [bad udp cksum 0xffab -> 0x209b!] SIP, length: 400 PRACK sip:2%23@127.0.0.1:6060 SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK805354013 Route: From: ;tag=318688453 To: ;tag=896003446 Call-ID: 1336512045 CSeq: 21 PRACK Contact: Max-Forwards: 70 User-Agent: eXosip/5.3.0 RAck: 100 20 INVITE Content-Length: 0 06:19:14.831488 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 464) localhost..5060 > localhost..6060: [bad udp cksum 0xffcf -> 0x4d76!] SIP, length: 436 PRACK sip:2%23@127.0.0.1:6060 SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---3b5e3a0127f8ad7a;rport Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK805354013 Max-Forwards: 69 Contact: To: ;tag=896003446 From: ;tag=318688453 Call-ID: 1336512045 CSeq: 21 PRACK User-Agent: eXosip/5.3.0 RAck: 100 20 INVITE Content-Length: 0 06:19:14.840398 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 548) localhost..6060 > localhost..5060: [bad udp cksum 0x0024 -> 0xcade!] SIP, length: 520 SIP/2.0 200 OK Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---3b5e3a0127f8ad7a;rport=5060 Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK805354013 From: ;tag=318688453 To: ;tag=896003446 Call-ID: 1336512045 CSeq: 21 PRACK Contact: Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE User-Agent: eXosip/5.3.0 Allow-Events: conference Supported: replaces,timer,100rel Content-Length: 0 06:19:14.869863 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 473) localhost..5060 > localhost..6060: [bad udp cksum 0xffd8 -> 0x7309!] SIP, length: 445 SIP/2.0 200 OK Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK805354013 Contact: To: ;tag=896003446 From: ;tag=318688453 Call-ID: 1336512045 CSeq: 21 PRACK Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE Supported: replaces, timer, 100rel User-Agent: eXosip/5.3.0 Allow-Events: conference Content-Length: 0 06:19:18.651403 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 520) localhost..6060 > localhost..5060: [bad udp cksum 0x0008 -> 0x16af!] SIP, length: 492 SIP/2.0 404 Not Found Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---fb353974ea9b5f79;rport=5060 Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 From: ;tag=318688453 To: ;tag=896003446 Call-ID: 1336512045 CSeq: 20 INVITE Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE User-Agent: eXosip/5.3.0 Allow-Events: conference Supported: replaces,timer,100rel Content-Length: 0 06:19:18.661660 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 325) localhost..5060 > localhost..6060: [bad udp cksum 0xff44 -> 0x285e!] SIP, length: 297 ACK sip:2%23@127.0.0.1:6060;transport=udp SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---fb353974ea9b5f79;rport Max-Forwards: 70 To: ;tag=896003446 From: ;tag=318688453 Call-ID: 1336512045 CSeq: 20 ACK Content-Length: 0 06:19:18.664853 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 445) localhost..5060 > localhost..6060: [bad udp cksum 0xffbc -> 0x5d26!] SIP, length: 417 SIP/2.0 404 Not Found Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK257883665 To: ;tag=896003446 From: ;tag=318688453 Call-ID: 1336512045 CSeq: 20 INVITE Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE Supported: replaces, timer, 100rel User-Agent: eXosip/5.3.0 Allow-Events: conference Content-Length: 0 06:19:18.686783 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 274) localhost..6060 > localhost..5060: [bad udp cksum 0xff11 -> 0x0bef!] SIP, length: 246 ACK sip:2%23@192.168.20.104 SIP/2.0 Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK257883665 From: ;tag=318688453 To: ;tag=896003446 Call-ID: 1336512045 CSeq: 20 ACK Content-Length: 0 14 packets captured 29 packets received by filter 0 packets dropped by kernel