User's Manual

IP address is constructed as follows.
IP address construction in binary number of each bit
xxxxxxxx (8 bit): X1 xxxxxxxx (8 bit): X2 xxxxxxxx (8 bit): X3 xxxxxxxx (8 bit): X4
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
E.g. IP address in binary: 11000000. 10101000. 00000001. 00001101 (It is equal to 192.168.1.13)
* Binary number 1 means to take the equivalent decimal number (2
7
, 2
5
, etc) and 0 means to disregard it.
IP address construction in decimal number of each byte
xxx (0-255: 1 byte): X1 xxx (0-255: 1 byte): X2 Xxx (0-255: 1 byte): X3 Xxx (0-255: 1 byte): X4
128 64
32 16
8 4 2 1 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1
E.g. IP address in decimal: 192. 168. 1. 13 (It is equal to 11000000. 10101000. 00000001. 00001101)
* Binary number 1 means to take the equivalent decimal number (2
7
, 2
5
, etc) and 0 means to disregard it.
Network masking point is to be expressed with decimal number from 0 to 31. IP address is
consisted in 4 bytes. 4 bytes are 32 bits. Network is to be masked on every bit from the first bit to
the 32
nd
bit. Masked bit is marked with binary number ‘1’, and the corresponding bits out of
provided IP address are defined as network ID for IP filtering.