root@comcerto:~# tcpdump -v -s1514 port 5060 and host 172.16.200.70
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1514 bytes
03:47:00.428341 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1062)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 1034
        INVITE sip:36901@172.16.200.70 SIP/2.0
        Via: SIP/2.0/UDP 172.16.110.11:5060;branch=z9hG4bK-524287-1---40899843a71e8a3d;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK658017856
        Max-Forwards: 69
        Record-Route: <sip:172.16.110.11:5060;transport=udp;lr>
        Contact: <sip:35277@127.0.0.1:6060>
        To: <sip:36901@172.16.110.11>
        From: <sip:35277@172.16.110.11>;tag=637260520
        Call-ID: 1790710448
        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: PRI
        Content-Length: 359

        v=0
        o=gateway 0 63 IN IP4 172.16.110.11
        s=conversation
        c=IN IP4 172.16.110.11
        t=0 0
        m=audio 10126 RTP/AVP 8 0 9 4 18 101 13 98
        a=rtpmap:8 PCMA/8000
        a=rtpmap:0 PCMU/8000
        a=rtpmap:9 G722/8000
        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
03:47:00.434703 IP (tos 0xa,ECT(0), ttl 61, id 62599, offset 0, flags [DF], proto UDP (17), length 488)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 460
        SIP/2.0 100 Trying
        Via: SIP/2.0/UDP 172.16.110.11:5060;received=172.16.110.11;branch=z9hG4bK-524287-1---40899843a71e8a3d;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;branch=z9hG4bK658017856;rport=6060
        Record-Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Contact: <sip:36901@172.16.200.70:5060>
        Call-ID: 1790710448
        CSeq: 20 INVITE
        Content-Length: 0

03:47:00.601620 IP (tos 0xa,ECT(0), ttl 61, id 62621, offset 0, flags [DF], proto UDP (17), length 806)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 778
        SIP/2.0 180 Ringing
        Via: SIP/2.0/UDP 172.16.110.11:5060;received=172.16.110.11;branch=z9hG4bK-524287-1---40899843a71e8a3d;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;branch=z9hG4bK658017856;rport=6060
        Record-Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Contact: <sip:36901@172.16.200.70:5060>
        Call-ID: 1790710448
        CSeq: 20 INVITE
        RSeq: 25
        Allow: INVITE,CANCEL,ACK,BYE,INFO,PRACK,UPDATE,NOTIFY,MESSAGE,REFER,OPTIONS
        Require: 100rel
        Session-ID: 74978e2716fe4890b6a35317adf9b600
        Content-Type: application/sdp
        Content-Length: 134

        v=0
        o=mkd 1763437049 1 IN IP4 172.16.200.70
        s=protei
        c=IN IP4 172.16.200.70
        t=0 0
        m=audio 21728 RTP/AVP 8
        a=rtpmap:8 PCMA/8000
03:47:00.647556 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 487)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 459
        PRACK sip:36901@172.16.200.70:5060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.110.11:5060;branch=z9hG4bK-524287-1---f4630468c7b7170c;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1029555417
        Max-Forwards: 69
        Contact: <sip:35277@127.0.0.1:6060>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Call-ID: 1790710448
        CSeq: 21 PRACK
        User-Agent: eXosip/5.3.0
        RAck: 25 20 INVITE
        Content-Length: 0

03:47:00.650632 IP (tos 0xa,ECT(0), ttl 61, id 62628, offset 0, flags [DF], proto UDP (17), length 443)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 415
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 172.16.110.11:5060;received=172.16.110.11;branch=z9hG4bK-524287-1---f4630468c7b7170c;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;branch=z9hG4bK1029555417;rport=6060
        Record-Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Call-ID: 1790710448
        CSeq: 21 PRACK
        Content-Length: 0

03:47:03.429835 IP (tos 0xa,ECT(0), ttl 61, id 62950, offset 0, flags [DF], proto UDP (17), length 774)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 746
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 172.16.110.11:5060;received=172.16.110.11;branch=z9hG4bK-524287-1---40899843a71e8a3d;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;branch=z9hG4bK658017856;rport=6060
        Record-Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Contact: <sip:36901@172.16.200.70:5060>
        Call-ID: 1790710448
        CSeq: 20 INVITE
        Allow: INVITE,CANCEL,ACK,BYE,INFO,PRACK,UPDATE,NOTIFY,MESSAGE,REFER,OPTIONS
        Session-ID: 74978e2716fe4890b6a35317adf9b600
        Content-Type: application/sdp
        Content-Length: 134

        v=0
        o=mkd 1763437049 1 IN IP4 172.16.200.70
        s=protei
        c=IN IP4 172.16.200.70
        t=0 0
        m=audio 21728 RTP/AVP 8
        a=rtpmap:8 PCMA/8000
03:47:03.482137 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 462)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 434
        ACK sip:36901@172.16.200.70:5060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.110.11:5060;branch=z9hG4bK-524287-1---7ec017359678974b;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK649241216
        Max-Forwards: 69
        Contact: <sip:35277@127.0.0.1:6060>
        To: <sip:36901@172.16.110.11>;tag=17634371990008A009
        From: <sip:35277@172.16.110.11>;tag=637260520
        Call-ID: 1790710448
        CSeq: 20 ACK
        User-Agent: eXosip/5.3.0
        Content-Length: 0

03:47:03.485833 IP (tos 0xa,ECT(0), ttl 61, id 62955, offset 0, flags [DF], proto UDP (17), length 744)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 716
        INVITE sip:35277@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437202152X0007E46C
        Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:35277@172.16.110.11>;tag=637260520
        From: <sip:36901@172.16.110.11>;tag=17634371990008A009
        Contact: <sip:36901@172.16.200.70:5060>
        Call-ID: 1790710448
        CSeq: 1000 INVITE
        Max-Forwards: 70
        Allow: INVITE,CANCEL,ACK,BYE,INFO,PRACK,UPDATE,NOTIFY,MESSAGE,REFER,OPTIONS
        Content-Type: application/sdp
        Content-Length: 214

        v=0
        o=mkd 1763437049 2 IN IP4 172.29.100.21
        s=protei
        c=IN IP4 172.29.100.21
        t=0 0
        m=audio 12238 RTP/AVP 8 101
        a=rtpmap:8 PCMA/8000
        a=ptime:20
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=sendrecv
03:47:03.498711 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 471)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 443
        SIP/2.0 407 Proxy Authentication Required
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437202152X0007E46C
        Proxy-Authenticate: Digest nonce="1763437623:8c6e69aeb8bef2e25e77c88d717c22a7",algorithm=MD5,realm="172.16.110.11",qop="auth,auth-int"
        To: <sip:35277@172.16.110.11>;tag=637260520
        From: <sip:36901@172.16.110.11>;tag=17634371990008A009
        Call-ID: 1790710448
        CSeq: 1000 INVITE
        Server: repro 1.12.0
        Content-Length: 0

03:47:03.501826 IP (tos 0xa,ECT(0), ttl 61, id 62958, offset 0, flags [DF], proto UDP (17), length 323)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 295
        ACK sip:35277@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437202152X0007E46C
        To: <sip:35277@172.16.110.11>;tag=637260520
        From: <sip:36901@172.16.110.11>;tag=17634371990008A009
        Call-ID: 1790710448
        CSeq: 1000 ACK
        Max-Forwards: 70
        Content-Length: 0

03:47:03.502826 IP (tos 0xa,ECT(0), ttl 61, id 62959, offset 0, flags [DF], proto UDP (17), length 397)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 369
        BYE sip:35277@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437202168X0007E46D
        Route: <sip:172.16.110.11:5060;transport=udp;lr>
        To: <sip:35277@172.16.110.11>;tag=637260520
        From: <sip:36901@172.16.110.11>;tag=17634371990008A009
        Call-ID: 1790710448
        CSeq: 1001 BYE
        Max-Forwards: 70
        Reason: Q.850;cause=34
        Content-Length: 0

03:47:03.547904 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 331)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 303
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437202168X0007E46D
        To: <sip:35277@172.16.110.11>;tag=637260520
        From: <sip:36901@172.16.110.11>;tag=17634371990008A009
        Call-ID: 1790710448
        CSeq: 1001 BYE
        Server: repro 1.12.0
        User-Agent: eXosip/5.3.0
        Content-Length: 0

03:47:08.264215 IP (tos 0xa,ECT(0), ttl 61, id 64005, offset 0, flags [DF], proto UDP (17), length 372)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 344
        OPTIONS sip:172.16.110.11:5060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437206929X0007E470
        To: <sip:172.16.110.11:5060>
        From: <sip:172.16.200.70:5060>;tag=17634372060008A00D
        Contact: <sip:172.16.200.70:5060>
        Call-ID: 691BEA96E2D2E0007E330_172.16.200.70
        CSeq: 100 OPTIONS
        Max-Forwards: 70
        Content-Length: 0

03:47:08.274475 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 343)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 315
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437206929X0007E470
        Contact: <sip:172.16.110.11:5060>
        To: <sip:172.16.110.11:5060>;tag=d8b00c50
        From: <sip:172.16.200.70:5060>;tag=17634372060008A00D
        Call-ID: 691BEA96E2D2E0007E330_172.16.200.70
        CSeq: 100 OPTIONS
        Content-Length: 0

03:47:23.275159 IP (tos 0xa,ECT(0), ttl 61, id 1452, offset 0, flags [DF], proto UDP (17), length 372)
    172.16.200.70.5060 > 172.16.110.11.5060: SIP, length: 344
        OPTIONS sip:172.16.110.11:5060 SIP/2.0
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437221943X0007E473
        To: <sip:172.16.110.11:5060>
        From: <sip:172.16.200.70:5060>;tag=17634372210008A010
        Contact: <sip:172.16.200.70:5060>
        Call-ID: 691BEAA5E66910007E333_172.16.200.70
        CSeq: 100 OPTIONS
        Max-Forwards: 70
        Content-Length: 0

03:47:23.286607 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 343)
    172.16.110.11.5060 > 172.16.200.70.5060: SIP, length: 315
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 172.16.200.70:5060;branch=z9hG4bK_a3Kr_1763437221943X0007E473
        Contact: <sip:172.16.110.11:5060>
        To: <sip:172.16.110.11:5060>;tag=8546cf0f
        From: <sip:172.16.200.70:5060>;tag=17634372210008A010
        Call-ID: 691BEAA5E66910007E333_172.16.200.70
        CSeq: 100 OPTIONS
        Content-Length: 0


16 packets captured
16 packets received by filter
0 packets dropped by kernel
root@comcerto:~#
