Frame 2272: 66 bytes on wire (528 bits), 66 bytes captured (528 bits) Encapsulation type: Ethernet (1) Arrival Time: Jul 22, 2017 02:50:06.641660000 UTC UTC Arrival Time: Jul 22, 2017 02:50:06.641660000 UTC Epoch Arrival Time: 1500691806.641660000 [Time shift for this packet: 0.000000000 seconds] [Time delta from previous captured frame: 0.000414000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 392.116311000 seconds] Frame Number: 2272 Frame Length: 66 bytes (528 bits) Capture Length: 66 bytes (528 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ethertype:ip:tcp] Ethernet II, Src: Cisco_01:e9:5c (00:09:e8:01:e9:5c), Dst: Dell_c3:1b:e9 (00:26:b9:c3:1b:e9) Destination: Dell_c3:1b:e9 (00:26:b9:c3:1b:e9) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: Cisco_01:e9:5c (00:09:e8:01:e9:5c) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) [Stream index: 3] Internet Protocol Version 4, Src: 131.253.61.100, Dst: 172.16.45.52 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 52 Identification: 0x085c (2140) 010. .... = Flags: 0x2, Don't fragment 0... .... = Reserved bit: Not set .1.. .... = Don't fragment: Set ..0. .... = More fragments: Not set ...0 0000 0000 0000 = Fragment Offset: 0 Time to Live: 115 Protocol: TCP (6) Header Checksum: 0xf427 [validation disabled] [Header checksum status: Unverified] Source Address: 131.253.61.100 Destination Address: 172.16.45.52 [Source GeoIP: US, ASN 8075, MICROSOFT-CORP-MSN-AS-BLOCK] [Source GeoIP Country: United States] [Source or Destination GeoIP Country: United States] [Source GeoIP ISO Two Letter Country Code: US] [Source or Destination GeoIP ISO Two Letter Country Code: US] [Source GeoIP AS Number: 8075] [Source or Destination GeoIP AS Number: 8075] [Source GeoIP AS Organization: MICROSOFT-CORP-MSN-AS-BLOCK] [Source or Destination GeoIP AS Organization: MICROSOFT-CORP-MSN-AS-BLOCK] [Source GeoIP Latitude: 37.751] [Source or Destination GeoIP Latitude: 37.751] [Source GeoIP Longitude: -97.822] [Source or Destination GeoIP Longitude: -97.822] [Stream index: 33] Transmission Control Protocol, Src Port: 443, Dst Port: 49166, Seq: 0, Ack: 1, Len: 0 Source Port: 443 Destination Port: 49166 [Stream index: 49] [Stream Packet Number: 2] [Conversation completeness: Incomplete, SYN_SENT (1)] ..0. .... = RST: Absent ...0 .... = FIN: Absent .... 0... = Data: Absent .... .0.. = ACK: Absent .... ..0. = SYN-ACK: Absent .... ...1 = SYN: Present [Completeness Flags: ·····S] [TCP Segment Len: 0] Sequence Number: 0 (relative sequence number) Sequence Number (raw): 2570286880 [Next Sequence Number: 1 (relative sequence number)] Acknowledgment Number: 1 (relative ack number) Acknowledgment number (raw): 2832505204 1000 .... = Header Length: 32 bytes (8) Flags: 0x012 (SYN, ACK) 000. .... .... = Reserved: Not set ...0 .... .... = Accurate ECN: Not set .... 0... .... = Congestion Window Reduced: Not set .... .0.. .... = ECN-Echo: Not set .... ..0. .... = Urgent: Not set .... ...1 .... = Acknowledgment: Set .... .... 0... = Push: Not set .... .... .0.. = Reset: Not set .... .... ..1. = Syn: Set [Expert Info (Chat/Sequence): Connection establish acknowledge (SYN+ACK): server port 443] [Connection establish acknowledge (SYN+ACK): server port 443] [Severity level: Chat] [Group: Sequence] .... .... ...0 = Fin: Not set [TCP Flags: ·······A··S·] Window: 8192 [Calculated window size: 8192] Checksum: 0x2fc5 [unverified] [Checksum Status: Unverified] Urgent Pointer: 0 Options: (12 bytes), Maximum segment size, No-Operation (NOP), Window scale, No-Operation (NOP), No-Operation (NOP), SACK permitted TCP Option - Maximum segment size: 1352 bytes Kind: Maximum Segment Size (2) Length: 4 MSS Value: 1352 TCP Option - No-Operation (NOP) Kind: No-Operation (1) TCP Option - Window scale: 8 (multiply by 256) Kind: Window Scale (3) Length: 3 Shift count: 8 [Multiplier: 256] TCP Option - No-Operation (NOP) Kind: No-Operation (1) TCP Option - No-Operation (NOP) Kind: No-Operation (1) TCP Option - SACK permitted Kind: SACK Permitted (4) Length: 2 [Timestamps] [Time since first frame in this TCP stream: 0.124547000 seconds] [Time since previous frame in this TCP stream: 0.124547000 seconds] [SEQ/ACK analysis] [This is an ACK to the segment in frame: 2172] [The RTT to ACK the segment was: 0.124547000 seconds]