一 IP协议IP协议的完整数据结构为:以太网数据头|IP数据头| TCP/UDP数据包头 |数据1.以太网头#define ETHER_ADDR_LEN6//以太网数据头结构体，共14字节typedef struct ether_header{u_char ether_dhost[ETHER_ADDR_LEN];//目的MAC地址 6字节u_char ether_shost[ETHER_ADDR_

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