CCNA Day 03


Totally there are five classes available, they are:
01. Class A; 02. Class B; 03. Class C; 04. Class D and 05. Class E

IP Class:

Class A:     Network     ◦   Host          ◦   Host         ◦      Host
Class B:     Network     ◦   Network   ◦    Host         ◦       Host
Class C:     Network     ◦   Network    ◦   Network   ◦   Host
Class D:     Multicast
Class E:     Experimental
Each IP address consists of 4 Octet, each Octet consists of 8 Bits, hence IP address consists of totally 32 Bits
Depending upon the number of host in the network will decide as to choose which class to use

Number of IP address range Class Wise:

In Class A we will get totally 16777216 IP addresses
In Class B we will get totally 65536 IP addresses
In Class C we will get totally 256 IP addresses

IP Classes is of 2 types:

01. Public IP [Live or Internet IP] and 02. Private IP [Local or Personal IP]

IP Range Class wise [Public IP Address]:

Class A:     001 to 126
Class B:     128 to 191
Class C:     192 to 223
Class D:     224 to 239
Class E:     240 to 255
Note: 127 is used for Loop Back means "for Self Diagnose"

IP Range Class wise [Private IP Address]:

Class A:     10 . 0 . 0 . 0           to     10 . 255 . 255 . 255
Class B:     10 . 16 . 0 . 0         to     10 . 31 . 255 . 255
Class C:     192 . 168 . 0 . 0     to     192 . 168 . 255 . 255

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Related Articles:
CCNA Day 02 <<<<< Previous Articles = Next Articles >>>>> CCNA Day 04
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Other Articles:
Binary Number System  - Decimal Number System  -  Network Classes
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