Packet format of network data packets

tags: network programming

1. Overview of network packets

1. In order to be able to correctly parse out the upper layer data packets, each layer in the TCP/IP protocol stack is marked with some "protocol type", as detailed below

2. The process of assembling/disassembling the udp packet

2. Packet format of each layer

1.UDP packet format

UDP

2. TCP packet format

TCP

3. ICMP packet format

ICMP

4. IP packet format

IP

5.Ethernet packet format

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