wireshark 抓包内容分析【部分】

从该界面可以看出显示了五行信息，默认这些信息是没有被展开的。各行信息如下所示：

q  Frame：物理层的数据帧概况。

q  EthernetII：数据链路层以太网帧头部信息。

q  InternetProtocol Version 4：互联网层IP包头部信息。

q  TransmissionControl Protocol：传输层的数据段头部信息，此处是TCP协议。

q  HypertextTransfer Protocol：应用层的信息，此处是HTTP协议。

（1）物理层的数据帧概况

Frame 5: 268 bytes on wire (2144 bits), 268 bytes captured (2144 bits) on interface 0       #5号帧，线路268字节，实际捕获268字节

 Interface id: 0                                                                                                  #接口id

 Encapsulation type: Ethernet (1)                                                                          #封装类型

 Arrival Time: Jun 11, 2015 05:12:18.469086000 中国标准时间          #捕获日期和时间

 [Time shift for this packet: 0.000000000 seconds]

 Epoch Time: 1402449138.469086000 seconds

 [Time delta from previous captured frame: 0.025257000 seconds]   #此包与前一包的时间间隔

 [Time since reference or first frame: 0.537138000 seconds]              #此包与第一帧的时间间隔

 Frame Number: 5                                                                                      #帧序号

 Frame Length: 268 bytes (2144 bits)                                                        #帧长度

 Capture Length: 268 bytes (2144 bits)                                                      #捕获长度

 [Frame is marked: False]                                                                        #此帧是否做了标记：否

 [Frame is ignored: False]                                                                        #此帧是否被忽略：否

 [Protocols in frame: eth:ip:tcp:http]                                                    #帧内封装的协议层次结构

 [Number of per-protocol-data: 2]                                                                          #

 [Hypertext Transfer Protocol, key 0]

 [Transmission Control Protocol, key 0]

 [Coloring Rule Name: HTTP]                                                                       #着色标记的协议名称

[Coloring Rule String: http || tcp.port == 80]                                                 #着色规则显示的字符串

（2）数据链路层以太网帧头部信息

Ethernet II, Src: Giga-Byt_c8:4c:89 (1c:6f:65:c8:4c:89), Dst: Tp-LinkT_f9:3c:c0 (6c:e8:73:f9:3c:c0)

Destination: Tp-LinkT_f9:3c:c0 (6c:e8:73:f9:3c:c0)                                     #目标MAC地址

    Source: Giga-Byt_c8:4c:89 (1c:6f:65:c8:4c:89)                                        #源MAC地址

    Type: IP (0x0800)

（3）互联网层IP包头部信息

Internet Protocol Version 4, Src: 192.168.0.104 (192.168.0.104), Dst: 61.182.140.146 (61.182.140.146)

Version: 4                                                                                                          #互联网协议IPv4

    Header length: 20 bytes                                                                               #IP包头部长度

    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00: Not-ECT (Not ECN-Capable Transport))                                                                                                                                  
#差分服务字段

    Total Length: 254                                                                                        #IP包的总长度

    Identification: 0x5bb5 (23477)                                                                    #标志字段

    Flags: 0x02 (Don't Fragment)                                                                      #标记字段

    Fragment offset: 0                                                                                         #分的偏移量

    Time to live: 64                                                                                               #生存期TTL

    Protocol: TCP (6)                                                                             #此包内封装的上层协议为TCP

    Header checksum: 0x52ec [validation disabled]                                 #头部数据的校验和

    Source: 192.168.0.104 (192.168.0.104)                                                   #源IP地址

    Destination: 61.182.140.146 (61.182.140.146)                                       #目标IP地址

（4）传输层TCP数据段头部信息

Transmission Control Protocol, Src Port: 51833 (51833), Dst Port: http (80), Seq: 1, Ack: 1, Len: 214

Source port: 51833 (51833)                                                                             #源端口号

    Destination port: http (80)                                                                        #目标端口号

    Sequence number: 1    (relative sequence number)                                   #序列号（相对序列号）

    [Next sequence number: 215    (relative sequence number)]           #下一个序列号

    Acknowledgment number: 1    (relative ack number)                         #确认序列号

    Header length: 20 bytes                                                                               #头部长度

    Flags: 0x018 (PSH, ACK)                                                                             #TCP标记字段

    Window size value: 64800                                                                     #流量控制的窗口大小

    Checksum: 0x677e [validation disabled]                                                  #TCP数据段的校验和