User`s guide

Signamax 065-7931 16-Port 10/100/1000BaseT/TX WebSmart Switch
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Classful addressing divides IP addresses into three classes: class A, class B
and class C. The remaining valid IP addresses are used for multicast and broadcast.
The bit length of the network prefix is the same as that of the subnet mask and is
denoted as IP address/X, for example, 192.168.1.0/24. Each class has its address
range described below.
Class A:
Valid addresses are those less than 126.255.255.255. There are a total of
126 networks that can be defined, because address 0.0.0.0 is reserved for the
default route and 127.0.0.0/8 is reserved for the loopback function.
0
Class B:
Valid IP addresses range between 128.0.0.0 and 191.255.255.255. Each
class B network has a 16-bit network prefix followed by a 16-bit host address. There
are 16,384 (2^14)/16 networks able to be defined, with a maximum of 65534
(2^16 –2) hosts per network.
10
Class C:
Valid IP addresses range between 192.0.0.0 and 223.255.255.255. Each
class C network has a 24-bit network prefix followed by an 8-bit host address. There
are 2,097,152 (2^21)/24 networks able to be defined with a maximum of 254 (2^8 –
2) hosts per network.
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Bit # 0 1 7 8 31
Network address Host address
Bit # 01 2 15 16 31
Network address Host address
Bit # 0 1 2 3 23 24 31
Network address Host address