TCP/IP protocol suite is mapped to a four-layered model with network
There are five classes of IP Addresses, namely, Class A, B, C, D, and E.
The subnet mask hides the host IP address such that only the network ID is visible. The destination of the packet is decided by comparing the subnet masks of the destination and the host subnet masks .
Default gateway is the IP Address of a router, to which all the packets are sent to the remote network. The packets are then sent from the router to other networks till they reach the destination network.
Subnets can be created either on the physical basis or logical basis.
IP packet filtering, data encryption, authentication, and IPSec Internet Key Exchange can protect data on a network.
We must create a base line by optimizing subnet design IP performance, remote subnets, Quality of Service (QoS), and QoS connections to create an effective network infrastructure.