IP Address
- IP Address is used to uniquely identify the device
- Execute
ipconfig

- IP Address = Network id + host id
- IP format which are looking at is IPV4
X.X.X.X
which is a 32 bit number represented as 4 octets
- Range of IPv4
0.0.0.0
to 255.255.255.255
How to find out Network id and Host id
- SM has two possible values
0
or 255
(my representation is decimal)
- Find out Network id and Host id
1 2 3 4
IP: 192.168.0.116
SM: 255.255.255.0
Octects with 255 as SM
1,2,3
Network id: 192.168.0
Octects with 0 as SM
4
host id: 116
ip: 10.10.0.11
SM: 255.255.0.0
network id: 10.10
host id: 0.11
ip 10.0.0.7
SM: 255.0.0.0
network id: 10
host id: 0.0.7
- Along with this we can also tell one more info
1 2 3 4
IP: 192.168.0.116
SM: 255.255.255.0
Octects with 255 as SM
1,2,3
Network id: 192.168.0
Octects with 0 as SM
4
host id: 116
size => 1 Octect => 8 => 2^8 => 256 (devices)
ip: 10.10.0.11
SM: 255.255.0.0
network id: 10.10
host id: 0.11
Size => 2 Octects => 16 => 2^16 => 65536 (devices)
ip 10.0.0.7
SM: 255.0.0.0
network id: 10
host id: 0.0.7
Size = 3 Octects => 24 bits => 2^24 = 16777216 (devices)
Private Networks
- There are three ip ranges reserved for private networking
192.168.0.0 to 192.168.255.255
172.16.0.0 to 172.31.255.255
10.0.0.0 to 10.255.255.255
Router
- Router is a device which can forward packets from one network to another
-
Default Gateway in ipconfig reprsents your router.
-
NAT (Network Address Translation) : This server establishes internet connectivity for private networks as it does Address Translations.
Like this:
Like Loading...