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IP addresses use a "dotted decimal" notation. Here are
some examples of IP addresses written in this format:
This allows IP address to be written in a string of 4 decimal
(base 10) numbers. Computers can only understand binary
(base 2) numbers, and these binary numbers are usually
grouped together in bytes, or eight bits. (A bit is a binary
digit – either a "1" or a "0"). The dots (periods) simply make
the IP address easier to read. A computer sees an IP
address not as four decimal numbers, but as a long string of
binary digits (32 binary digits or 32 bits, IP addresses are 32-
bit addresses).
The three IP addresses in the example above, written in
binary form are:
1.
2.
3.
The dots are included to make the numbers easier to read.
Eight binary bits are called a 'byte' or an 'octet'. An octet
can represent any decimal value between '0' (00000000)
and '255' (11111111). IP addresses, represented in decimal
form, are four numbers whose value is between '0' to '255'.
The total range of IP addresses are then:
Lowest possible IP address -
Highest possible IP address -
To convert decimal numbers to 8-bit binary numbers (and
vice-versa), you can use the following chart:
9033691-01
1.
210.202.204.205
2.
189.21.241.56
3.
125.87.0.1
11010010.11001010.11001100.11001101
10111101.00010101.11110001.00111000
01111101.01010111.00000000.00000001
0.0.0.0
255.255.255.255
VH-2402-L3 Management Guide 137
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