c2 链路_1.TCP/IP协议详解-链路层

编程基础 • 2024-12-21 21:46 • 阅读 7

链路层

2. wireshark抓包物理层&数据链路层

物理层：

Frame 14816: 1227 bytes on wire (9816 bits), 1227 bytes captured (9816 bits) on interface 0 #14816号帧线路1227字节实际捕获1227字节

Interface id: 0 (en0) #接口id：0 网卡en0

Encapsulation type: Ethernet (1) #封装类型

Arrival Time: Jan 30, 2019 23:27:53. CST #捕获日期和时间

[Time shift for this packet: 0.000000000 seconds]

Epoch Time: . seconds

[Time delta from previous captured frame: 0.000001000 seconds] #此帧与前一帧捕获时间间隔

[Time delta from previous displayed frame: 0.0 seconds]

[Time since reference or first frame: 1686. seconds]

Frame Number: 14816

Frame Length: 1227 bytes (9816 bits)

Capture Length: 1227 bytes (9816 bits)

[Frame is marked: False]

[Frame is ignored: False]

[Protocols in frame: eth:ethertype:ip:tcp:http:media] #协议栈

[Coloring Rule Name: HTTP]

[Coloring Rule String: http || tcp.port == 80 || http2]

数据链路层：

Ethernet II, Src: Tp-LinkT_d1:c2:2b (30:fc:68:d1:c2:2b), Dst: Apple_a9:7d:5a (6c:40:08:a9:7d:5a)

Destination: Apple_a9:7d:5a (6c:40:08:a9:7d:5a) #目的物理地址

Address: Apple_a9:7d:5a (6c:40:08:a9:7d:5a) #源物理地址

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: Tp-LinkT_d1:c2:2b (30:fc:68:d1:c2:2b)

Address: Tp-LinkT_d1:c2:2b (30:fc:68:d1:c2:2b)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: IPv4 (0x0800)

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