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有人可以解释为什么 ICMP 回显数据包的最大合法大小计算如下:
65535 - 20 - 8 = 65507
谢谢。
65535 字节是 IPv4 网络数据包的最大允许大小,而 20 和 8 是 IP 和 ICMP 标头的大小,ICMP 数据最多保留 65507 字节。