Though conversations do to work, when I look at my raw packets I see that I have an incorrect checksum on most packets originating from my SER box. I'm guessing there's some kind of ACK or loose_route issue here, but I am unable to determine what it is.
I have attached the dump. Please advise.
did you sniff at the PC running ser? Sometmes the checksum is calculated in the NIC, thus tcpdump can't see them.
klaus
Jose Delancy wrote:
Though conversations do to work, when I look at my raw packets I see that I have an incorrect checksum on most packets originating from my SER box. I'm guessing there's some kind of ACK or loose_route issue here, but I am unable to determine what it is.
I have attached the dump. Please advise.
Frame 3 (667 bytes on wire, 667 bytes captured) Arrival Time: Sep 6, 2005 16:15:38.119886000 Time delta from previous packet: 4.481842000 seconds Time since reference or first frame: 4.490287000 seconds Frame Number: 3 Packet Length: 667 bytes Capture Length: 667 bytes Protocols in frame: eth:ip:udp:sip:sdp Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [ORIGINORIGIN] ([ORIGINORIGIN]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 653 Identification: 0x4e77 (20087) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 236 Protocol: UDP (0x11) Header checksum: 0xd847 [correct] Source: [ORIGINORIGIN] ([ORIGINORIGIN]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 633 Checksum: 0xe490 [correct] Session Initiation Protocol Request-Line: INVITE sip:15551234567@[SERSERSERSER]:5060 SIP/2.0 Method: INVITE Resent Packet: False Message Header Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567sip:15551234567@[SERSERSERSER]:5060 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 From: 15559876543sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Max-Forwards: 70 Subject: ORIGIN Contact: sip:15559876543@[ORIGINORIGIN]:5060 Contact Binding: sip:15559876543@[ORIGINORIGIN]:5060 URI: sip:15559876543@[ORIGINORIGIN]:5060 SIP contact address: sip:15559876543@[ORIGINORIGIN]:5060 Content-Type: application/sdp Content-Length: 212 Message body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): username 3335037699 0 IN IP4 [CREATORCREATOR] Owner Username: username Session ID: 3335037699 Session Version: 0 Owner Network Type: IN Owner Address Type: IP4 Owner Address: [CREATORCREATOR] Session Name (s): username Connection Information (c): IN IP4 [CREATORCREATOR] Connection Network Type: IN Connection Address Type: IP4 Connection Address: [CREATORCREATOR] Time Description, active time (t): 3335037699 0 Session Start Time: 3335037699 Session Stop Time: 0 Media Description, name and address (m): audio 46786 RTP/AVP 18 Media Type: audio Media Port: 46786 Media Proto: RTP/AVP Media Format: ITU-T G.729 Media Attribute (a): rtpmap:18 G729/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 18 G729/8000 Media Attribute (a): rtpmap:101 telephone-event/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 101 telephone-event/8000 Media Attribute (a): sendrecv
Frame 4 (593 bytes on wire, 593 bytes captured) Arrival Time: Sep 6, 2005 16:15:38.319683000 Time delta from previous packet: 0.199797000 seconds Time since reference or first frame: 4.690084000 seconds Frame Number: 4 Packet Length: 593 bytes Capture Length: 593 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [ORIGINORIGIN] ([ORIGINORIGIN]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 579 Identification: 0x10e4 (4324) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0xc215 [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [ORIGINORIGIN] ([ORIGINORIGIN]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 559 Checksum: 0x67e1 [incorrect, should be 0x1814] Session Initiation Protocol Status-Line: SIP/2.0 100 trying -- your call is important to us Status-Code: 100 Resent Packet: False Message Header Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567sip:15551234567@[SERSERSERSER]:5060 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 From: 15559876543sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Server: Sip EXpress router (0.9.3 (i386/linux)) Content-Length: 0 Warning: 392 [SERSERSERSER]:5060 "Noisy feedback tells: pid=4089 req_src_ip=[ORIGINORIGIN] req_src_port=5060 in_uri=sip:15551234567@[SERSERSERSER]:5060 out_uri=sip:5551234567@[DESTINATIONDESTINATION]:5060 via_cnt==1"
Frame 5 (784 bytes on wire, 784 bytes captured) Arrival Time: Sep 6, 2005 16:15:38.319795000 Time delta from previous packet: 0.000112000 seconds Time since reference or first frame: 4.690196000 seconds Frame Number: 5 Packet Length: 784 bytes Capture Length: 784 bytes Protocols in frame: eth:ip:udp:sip:sdp Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 770 Identification: 0x10e5 (4325) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0x3175 [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 750 Checksum: 0xf880 [incorrect, should be 0xcf39] Session Initiation Protocol Request-Line: INVITE sip:5551234567@[DESTINATIONDESTINATION]:5060 SIP/2.0 Method: INVITE Resent Packet: False Message Header Record-Route: sip:[SERSERSERSER];ftag=1126048899;lr=on Via: SIP/2.0/UDP [SERSERSERSER];branch=z9hG4bK1458.76e37293.0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567sip:15551234567@[SERSERSERSER]:5060 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 From: 15559876543sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Max-Forwards: 16 Subject: ORIGIN Contact: sip:15559876543@[ORIGINORIGIN]:5060 Contact Binding: sip:15559876543@[ORIGINORIGIN]:5060 URI: sip:15559876543@[ORIGINORIGIN]:5060 SIP contact address: sip:15559876543@[ORIGINORIGIN]:5060 Content-Type: application/sdp Content-Length: 212 Message body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): username 3335037699 0 IN IP4 [CREATORCREATOR] Owner Username: username Session ID: 3335037699 Session Version: 0 Owner Network Type: IN Owner Address Type: IP4 Owner Address: [CREATORCREATOR] Session Name (s): username Connection Information (c): IN IP4 [CREATORCREATOR] Connection Network Type: IN Connection Address Type: IP4 Connection Address: [CREATORCREATOR] Time Description, active time (t): 3335037699 0 Session Start Time: 3335037699 Session Stop Time: 0 Media Description, name and address (m): audio 46786 RTP/AVP 18 Media Type: audio Media Port: 46786 Media Proto: RTP/AVP Media Format: ITU-T G.729 Media Attribute (a): rtpmap:18 G729/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 18 G729/8000 Media Attribute (a): rtpmap:101 telephone-event/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 101 telephone-event/8000 Media Attribute (a): sendrecv
Frame 6 (373 bytes on wire, 373 bytes captured) Arrival Time: Sep 6, 2005 16:15:38.393215000 Time delta from previous packet: 0.073420000 seconds Time since reference or first frame: 4.763616000 seconds Frame Number: 6 Packet Length: 373 bytes Capture Length: 373 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 359 Identification: 0x98de (39134) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 238 Protocol: UDP (0x11) Header checksum: 0xfd25 [correct] Source: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 339 Checksum: 0xef96 [correct] Session Initiation Protocol Status-Line: SIP/2.0 100 Trying Status-Code: 100 Resent Packet: False Message Header Via: SIP/2.0/UDP [SERSERSERSER];branch=z9hG4bK1458.76e37293.0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Content-Length: 0
Frame 15 (684 bytes on wire, 684 bytes captured) Arrival Time: Sep 6, 2005 16:15:43.510711000 Time delta from previous packet: 0.682532000 seconds Time since reference or first frame: 9.881112000 seconds Frame Number: 15 Packet Length: 684 bytes Capture Length: 684 bytes Protocols in frame: eth:ip:udp:sip:sdp Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 670 Identification: 0x98e1 (39137) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 238 Protocol: UDP (0x11) Header checksum: 0xfbeb [correct] Source: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 650 Checksum: 0x2821 [correct] Session Initiation Protocol Status-Line: SIP/2.0 200 OK Status-Code: 200 Resent Packet: False Message Header To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Contact: sip:5551234567@[DESTINATIONDESTINATION]:5060 Contact Binding: sip:5551234567@[DESTINATIONDESTINATION]:5060 URI: sip:5551234567@[DESTINATIONDESTINATION]:5060\r SIP contact address: sip:5551234567@[DESTINATIONDESTINATION]:5060\r Content-Type: application/sdp Via: SIP/2.0/UDP [SERSERSERSER];branch=z9hG4bK1458.76e37293.0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 Record-Route: sip:[SERSERSERSER];ftag=1126048899;lr=on Content-Length: 160 Message body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): version 1234 6726 IN IP4 [CREATOR2CREATOR2] Owner Username: version Session ID: 1234 Session Version: 6726 Owner Network Type: IN Owner Address Type: IP4 Owner Address: [CREATOR2CREATOR2] Session Name (s): sip call Connection Information (c): IN IP4 [CREATOR2CREATOR2] Connection Network Type: IN Connection Address Type: IP4 Connection Address: [CREATOR2CREATOR2] Time Description, active time (t): 0 0 Session Start Time: 0 Session Stop Time: 0 Media Description, name and address (m): audio 17542 RTP/AVP 18 Media Type: audio Media Port: 17542 Media Proto: RTP/AVP Media Format: ITU-T G.729 Media Attribute (a): rtpmap:18 G729/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 18 G729/8000 Media Attribute (a): fmtp:18 annexb=no Media Attribute Fieldname: fmtp Media Attribute Value: 18 annexb=no
Frame 16 (624 bytes on wire, 624 bytes captured) Arrival Time: Sep 6, 2005 16:15:43.517182000 Time delta from previous packet: 0.006471000 seconds Time since reference or first frame: 9.887583000 seconds Frame Number: 16 Packet Length: 624 bytes Capture Length: 624 bytes Protocols in frame: eth:ip:udp:sip:sdp Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [ORIGINORIGIN] ([ORIGINORIGIN]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 610 Identification: 0x10ea (4330) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0xc1f0 [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [ORIGINORIGIN] ([ORIGINORIGIN]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 590 Checksum: 0x6800 [incorrect, should be 0x61da] Session Initiation Protocol Status-Line: SIP/2.0 200 OK Status-Code: 200 Resent Packet: False Message Header To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 INVITE Contact: sip:5551234567@[DESTINATIONDESTINATION]:5060 Contact Binding: sip:5551234567@[DESTINATIONDESTINATION]:5060 URI: sip:5551234567@[DESTINATIONDESTINATION]:5060\r SIP contact address: sip:5551234567@[DESTINATIONDESTINATION]:5060\r Content-Type: application/sdp Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 Record-Route: sip:[SERSERSERSER];ftag=1126048899;lr=on Content-Length: 160 Message body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): version 1234 6726 IN IP4 [CREATOR2CREATOR2] Owner Username: version Session ID: 1234 Session Version: 6726 Owner Network Type: IN Owner Address Type: IP4 Owner Address: [CREATOR2CREATOR2] Session Name (s): sip call Connection Information (c): IN IP4 [CREATOR2CREATOR2] Connection Network Type: IN Connection Address Type: IP4 Connection Address: [CREATOR2CREATOR2] Time Description, active time (t): 0 0 Session Start Time: 0 Session Stop Time: 0 Media Description, name and address (m): audio 17542 RTP/AVP 18 Media Type: audio Media Port: 17542 Media Proto: RTP/AVP Media Format: ITU-T G.729 Media Attribute (a): rtpmap:18 G729/8000 Media Attribute Fieldname: rtpmap Media Attribute Value: 18 G729/8000 Media Attribute (a): fmtp:18 annexb=no Media Attribute Fieldname: fmtp Media Attribute Value: 18 annexb=no
Frame 17 (365 bytes on wire, 365 bytes captured) Arrival Time: Sep 6, 2005 16:15:43.595159000 Time delta from previous packet: 0.077977000 seconds Time since reference or first frame: 9.965560000 seconds Frame Number: 17 Packet Length: 365 bytes Capture Length: 365 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [ORIGINORIGIN] ([ORIGINORIGIN]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 351 Identification: 0x4e79 (20089) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 236 Protocol: UDP (0x11) Header checksum: 0xd973 [correct] Source: [ORIGINORIGIN] ([ORIGINORIGIN]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 331 Checksum: 0xa524 [correct] Session Initiation Protocol Request-Line: ACK sip:[SERSERSERSER];lr=on SIP/2.0 Method: ACK Resent Packet: False Message Header Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 ACK Max-Forwards: 70 Content-Length: 0
Frame 18 (462 bytes on wire, 462 bytes captured) Arrival Time: Sep 6, 2005 16:15:43.616640000 Time delta from previous packet: 0.021481000 seconds Time since reference or first frame: 9.987041000 seconds Frame Number: 18 Packet Length: 462 bytes Capture Length: 462 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 448 Identification: 0x10eb (4331) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0x32b1 [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 428 Checksum: 0xf73e [incorrect, should be 0x4f55] Session Initiation Protocol Request-Line: ACK sip:[DESTINATIONDESTINATION];lr=on SIP/2.0 Method: ACK Resent Packet: False Message Header Record-Route: sip:[SERSERSERSER];ftag=1126048899;lr=on Via: SIP/2.0/UDP [SERSERSERSER];branch=0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 1 ACK Max-Forwards: 16 Content-Length: 0
Frame 42 (376 bytes on wire, 376 bytes captured) Arrival Time: Sep 6, 2005 16:15:52.634007000 Time delta from previous packet: 0.067331000 seconds Time since reference or first frame: 19.004408000 seconds Frame Number: 42 Packet Length: 376 bytes Capture Length: 376 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [ORIGINORIGIN] ([ORIGINORIGIN]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 362 Identification: 0x4e7f (20095) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 236 Protocol: UDP (0x11) Header checksum: 0xd962 [correct] Source: [ORIGINORIGIN] ([ORIGINORIGIN]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 342 Checksum: 0x58f3 [correct] Session Initiation Protocol Request-Line: BYE sip:15551234567@[SERSERSERSER]:5060 SIP/2.0 Method: BYE Resent Packet: False Message Header Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 2 BYE Max-Forwards: 70 Content-Length: 0
Frame 43 (493 bytes on wire, 493 bytes captured) Arrival Time: Sep 6, 2005 16:15:52.660881000 Time delta from previous packet: 0.026874000 seconds Time since reference or first frame: 19.031282000 seconds Frame Number: 43 Packet Length: 493 bytes Capture Length: 493 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 479 Identification: 0x10f7 (4343) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0x3286 [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 459 Checksum: 0xf75d [incorrect, should be 0x9fb6] Session Initiation Protocol Request-Line: BYE sip:5551234567@[DESTINATIONDESTINATION]:5060 SIP/2.0 Method: BYE Resent Packet: False Message Header Record-Route: sip:[SERSERSERSER];ftag=1126048899;lr=on Via: SIP/2.0/UDP [SERSERSERSER];branch=z9hG4bKe358.270dac87.0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 2 BYE Max-Forwards: 16 Content-Length: 0
Frame 44 (388 bytes on wire, 388 bytes captured) Arrival Time: Sep 6, 2005 16:15:52.733945000 Time delta from previous packet: 0.073064000 seconds Time since reference or first frame: 19.104346000 seconds Frame Number: 44 Packet Length: 388 bytes Capture Length: 388 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]), Dst: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Destination: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Source: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Type: IP (0x0800) Internet Protocol, Src: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]), Dst: [SERSERSERSER] ([SERSERSERSER]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 374 Identification: 0x98e8 (39144) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 238 Protocol: UDP (0x11) Header checksum: 0xfd0c [correct] Source: [DESTINATIONDESTINATION] ([DESTINATIONDESTINATION]) Destination: [SERSERSERSER] ([SERSERSERSER]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 354 Checksum: 0x275e [correct] Session Initiation Protocol Status-Line: SIP/2.0 200 OK Status-Code: 200 Resent Packet: False Message Header Via: SIP/2.0/UDP [SERSERSERSER];branch=z9hG4bKe358.270dac87.0 Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 2 BYE Content-Length: 0
Frame 45 (328 bytes on wire, 328 bytes captured) Arrival Time: Sep 6, 2005 16:15:52.744301000 Time delta from previous packet: 0.010356000 seconds Time since reference or first frame: 19.114702000 seconds Frame Number: 45 Packet Length: 328 bytes Capture Length: 328 bytes Protocols in frame: eth:ip:udp:sip Ethernet II, Src: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]), Dst: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Destination: Cisco_[ORG_MAC] (00:05:01:[ORG_MAC]) Source: Intel_[SER_MAC] (00:0e:0c:[SER_MAC]) Type: IP (0x0800) Internet Protocol, Src: [SERSERSERSER] ([SERSERSERSER]), Dst: [ORIGINORIGIN] ([ORIGINORIGIN]) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00) 0001 00.. = Differentiated Services Codepoint: Unknown (0x04) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 314 Identification: 0x10f8 (4344) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0xc30a [correct] Source: [SERSERSERSER] ([SERSERSERSER]) Destination: [ORIGINORIGIN] ([ORIGINORIGIN]) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Source port: 5060 (5060) Destination port: 5060 (5060) Length: 294 Checksum: 0x66d8 [incorrect, should be 0x4fb2] Session Initiation Protocol Status-Line: SIP/2.0 200 OK Status-Code: 200 Resent Packet: False Message Header Via: SIP/2.0/UDP [ORIGINORIGIN]:5060 From: 15559876543 sip:15559876543@[ORIGINORIGIN]:5060;tag=1126048899 SIP Display info: 15559876543 SIP from address: sip:15559876543@[ORIGINORIGIN]:5060 SIP tag: 1126048899 To: 15551234567 sip:15551234567@[SERSERSERSER]:5060;tag=3335037343-448857 SIP Display info: 15551234567 SIP to address: sip:15551234567@[SERSERSERSER]:5060 SIP tag: 3335037343-448857 Call-ID: F9CE10731F2C11DA85380000004213C4@[ORIGINORIGIN] CSeq: 2 BYE Content-Length: 0
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