[英]classless IP Subnetting
我想使用給定的IP地址進行子網划分,如下所示
192.168.10.0/25
我的要求是我希望每個子網30個地址。
子網0的nw地址是什么?
是192.168.10.0/27還是192.168.10.128/27嗎?
ipcalc工具可以為您解答:
Address: 192.168.10.0 11000000.10101000.00001010.0 0000000
Netmask: 255.255.255.128 = 25 11111111.11111111.11111111.1 0000000
Wildcard: 0.0.0.127 00000000.00000000.00000000.0 1111111
=>
Network: 192.168.10.0/25 11000000.10101000.00001010.0 0000000 (Class C)
Broadcast: 192.168.10.127 11000000.10101000.00001010.0 1111111
HostMin: 192.168.10.1 11000000.10101000.00001010.0 0000001
HostMax: 192.168.10.126 11000000.10101000.00001010.0 1111110
Hosts/Net: 126 (Private Internet)
Subnets
Netmask: 255.255.255.224 = 27 11111111.11111111.11111111.111 00000
Wildcard: 0.0.0.31 00000000.00000000.00000000.000 11111
Network: 192.168.10.0/27 11000000.10101000.00001010.000 00000 (Class C)
Broadcast: 192.168.10.31 11000000.10101000.00001010.000 11111
HostMin: 192.168.10.1 11000000.10101000.00001010.000 00001
HostMax: 192.168.10.30 11000000.10101000.00001010.000 11110
Hosts/Net: 30 (Private Internet)
Network: 192.168.10.32/27 11000000.10101000.00001010.001 00000 (Class C)
Broadcast: 192.168.10.63 11000000.10101000.00001010.001 11111
HostMin: 192.168.10.33 11000000.10101000.00001010.001 00001
HostMax: 192.168.10.62 11000000.10101000.00001010.001 11110
Hosts/Net: 30 (Private Internet)
Network: 192.168.10.64/27 11000000.10101000.00001010.010 00000 (Class C)
Broadcast: 192.168.10.95 11000000.10101000.00001010.010 11111
HostMin: 192.168.10.65 11000000.10101000.00001010.010 00001
HostMax: 192.168.10.94 11000000.10101000.00001010.010 11110
Hosts/Net: 30 (Private Internet)
Network: 192.168.10.96/27 11000000.10101000.00001010.011 00000 (Class C)
Broadcast: 192.168.10.127 11000000.10101000.00001010.011 11111
HostMin: 192.168.10.97 11000000.10101000.00001010.011 00001
HostMax: 192.168.10.126 11000000.10101000.00001010.011 11110
Hosts/Net: 30 (Private Internet)
Subnets: 4
Hosts: 120
另外,地址192.168.10.128
超出了原始/25
的范圍!
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