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networking - 如何从 IP 地址和子网掩码确定网络和广播地址?

转载 作者:行者123 更新时间:2023-12-03 13:08:25 24 4
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例如:

  • IP 地址:130.45.34.36
  • 面具:255.255.240.0

  • 什么是网络 ID/子网地址,以及
    广播地址?

    最佳答案

    让我们用二进制来写:
    130.45.34.36 = 10000010.00101101.00100010.00100100255.255.240.0 = 11111111.11111111.11110000.00000000
    两者之间的按位与将为我们提供网络地址:

    10000010.00101101.00100010.00100100   (ip address)
    AND
    11111111.11111111.11110000.00000000 (subnet mask)
    =
    10000010.00101101.00100000.00000000 = 130.45.32.0 (the resulting network address)

    网络地址和 之间的按位或倒置 子网掩码会给我们广播地址:
    10000010.00101101.00100000.00000000   (netadress)
    OR
    00000000.00000000.00001111.11111111 (inverted subnet mask)
    =
    10000010.00101101.00101111.11111111 = 130.45.47.255 (broadcast address)

    关于networking - 如何从 IP 地址和子网掩码确定网络和广播地址?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29034878/

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