A.62.26.1.2 B.202.119.24.5 C.78.1.0.0 D.223.268.129.1
A.202.115.1.0 B.202.115.1.255 C.202.115.255.1 D.202.115.255.255
A.應(yīng)用 B.網(wǎng)絡(luò)互連 C.網(wǎng)絡(luò)接口和硬件 D.傳輸