IP
Address Format And Subnet Mask :- IP
Address is divided into Network and Host Portion and Subnet Mask can differentiates
Network Portion and Host Portion. Here
N is Network and H is Host.
Class
A is written as N.H.H.H
Class
B is written as N.N.H.H
Class
C is written as N.N.N.H
Class A IP Address Format And Subnet Mask :-
Class A Octet Format is written as N.H.H.H
Network
Bits – 8 Host Bits – 24
Number
of Network 28-1 (-1 is priority Bit For Class A)
27
= 128
128
– 2 (-2 for 0 and 127 Network) = 126
Networks
Number
of Host = 224 – 2 (-2 For Network IP and Broadcast IP) =
16777214 Host/Network
Default
Subnet Mask for Class A is : 255.0.0.0
Class B IP Address Format And Subnet Mask :-
Class B IP Address Format And Subnet Mask :-
Class B octet Format is N.N.H.H
Network Bits – 16 Host
Bits – 16
Number of Network = 216-2 (-2 is priority
Bit for Class B)
214 =
16384 Networks
Number of Host = 216 – 2 (-2 For Network IP
and Broadcast IP) =
65534 Host/Network
Default
Subnet Mask for Class B is : 255.255.0.0
Class C IP Address Format And Subnet Mask :-
Class C octet Format is N.N.N.H
Class C IP Address Format And Subnet Mask :-
Class C octet Format is N.N.N.H
Network Bits – 24 Host
Bits – 8
Number of Network = 224-3 (-3 is priority
Bit for Class C)
221 =
2097152 Networks
Number of Host = 28 – 2 (-2 For Network IP
and Broadcast IP)
=
254 Host/Network
Default
Subnet Mask for Class C is : 255.255.255.0
Example Of Network and Broadcast ID or Address
Example Of Network and Broadcast ID or Address
10.0.0.0
(Network IP Address)
.
. (Valid IP Address)
.
10.255.255.254
10.255.255.255
(Broadcast IP Address)
Private IP Address :- These IP address are use in Private Network such as Home Network, Office Network, in a organization like ISRO, Google, TATA etc. It means we use in a LAN Network. Private IP address can not communicate Public Network.
Private IP Address :- These IP address are use in Private Network such as Home Network, Office Network, in a organization like ISRO, Google, TATA etc. It means we use in a LAN Network. Private IP address can not communicate Public Network.
Private IP Address Table :-
Class
|
Start IP
|
End IP
|
Class A
|
10.0.0.0
|
10.255.255.255
|
Class B
|
172.16.0.0
|
172.31.255.255
|
Class C
|
192.168.0.0
|
192.168.255.255
|
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