IP Address
32-bits IP address ( 4 bytes, each bytes contains 8 bits (0,1) )
00001010 00000000 00000000 00000001
is written in dotted decimal as
10.0.0.1
each bytes value= minimum of 0 to a maximum of 255. Therefore,
Full range addresses is from 0.0.0.0 through 255.255.255.255.
That represents a total of 4,294,967,296 possible IP addreses.
IP Classes
A(large org) |
B(medium org) |
C(relatively small) |
D(multi-cast) |
E (exp) |
|
High-bit |
0 |
1,0 |
1,1,0 |
1,1,1,0 |
1,1,1,1 |
eg. 172.31.1.2 = 172 is between 128-192(128+64). So 10 is highest bit, Class B
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