IP地址段与子网掩码计算表(整理)

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1、IP地址段与子网掩码计算表掩码位数子网数十进制掩码IP数参考可用IP数(网络号-广播地址)01000042949672964294967294121280002147483648214748364624192000107374182410737418223822400053687091253687091041624000026843545626843545453224800013421772813421772666425200067108864671088627128254000335544323355443082562550001677721616777

2、21495122551280083886088388606101024255192004194304419430211204825522400209715220971501240962552400010485761048574138192255248005242885242861416384255252002621442621421532768255254001310721310701665536255255006553665534171310722552551280327683276618262144255255192016384163821952428

3、82552552240819281902010485762552552400409640942120971522552552480204820462241943042552552520102410222383886082552552540512510241677721625525525502562542533554432255255255128128126266710886425525525519264622713421772825525525522432302826843545625525525524016142953687091225525525524

4、8863010737418242552552552524231214748364825525525525423242949672962552552552551IP段对应表IP总数子网掩码C段个数/304255.255.255.2521/64/298255.255.255.2481/32/2816255.255.255.2401/16/2732255.255.255.2241/8/2664255.255.255.1921/4/24256255.255.255.01/23512255.255.254.02/221024255.255.252.04/212048

5、255.255.248.08/204096255.255.240.016/198192255.255.224.032/1816384255.255.192.064/1732768255.255.128.0128/1665536255.255.0.025624--1Subnets--254Hosts/Subnet代表一整个C段网络地址可用IP范围广播地址.0.1-.254.255/25--2Subnets--126Hosts/Subnet网络地址可用IP范围广播地址.0.1-.126.127.128.129-.254.25526--4Subnets--62H

6、osts/Subnet网络地址可用IP范围广播地址.0.1-.62.63.64.65-.126.127.128.129-.190.191.192.193-.254.255/27--8Subnets--30Hosts/Subnet网络地址可用IP范围广播地址.0.1-.30.31.32.33-.62.63.64.65-.94.95.96.97-.126.127.128.129-.158.159.160.161-.190.191.192.193-.222.223.224.225-.254.255/28--16Subnets--14Hosts/Subnet网络地

7、址可用IP范围广播地址.0.1-.14.15.16.17-.30.31.32.33-.46.47.48.49-.62.63.64.65-.78.79.80.81-.94.95.96.97-.110.111.112.113-.126.127.128.129-.142.143.144.145-.158.159.160.161-.174.175.176.177-.190.191.192.193-.206.207.208.209-.222.223.224.225-.238.239.240.241-.254.255/29--32Subnets--6Hosts/Sub

8、net网络地址可用IP范围广播地址.0.1-.6.7.8.9-.1