
IP address: (Internet Protocol)
· This is also known as logical address.
· IP address allows operating system to be able to communicate with each other.
· For a computer to be able to function in the network it must be installed with a network card and must be set with a proper IP address.
IP address can be set in two ways:-
1. Statically (Manually)
2. Dynamically (Automatically through a DHCP server)


Subnet mask
· After setting IP address the subnet mask is automatically set.
· It helps us identify the Network ID and Host ID of the IP address.
· Also in high level networking it is used for subnetting where we can transfer the network bits to host bit to increase the number of hosts in the network.
(Note: subnet will represent 255 for Network ID and 0 for Host ID.)
