Networking Basics Archives - Page 2 of 4

What is a Port?

It is a 16-bit number used to identify specific applications and services. TCP and UDP specify the source and destination port numbers in their packet headers, … Read more

User Datagram Protocol (UDP)

One other important protocol in the TCP/IP suite is User Datagram Protocol (UDP). This protocol is basically a scaled-down version of TCP. Just like TCP, this … Read more

Transmission Control Protocol (TCP) explained

One of the main protocols in the TCP/IP suite is Transmission Control Protocol (TCP). It provides reliable and ordered delivery of data between applications running on … Read more

TCP/IP suite of protocols

The TCP/IP suite is a set of protocols which we use on computer networks today (most notably on the Internet). It provides an end-to-end connectivity … Read more

Traceroute

Traceroute is a command-line interface based tool uses to identify the path used by a packet to reach its target. This tool also uses ICMP messages, … Read more

Ping- Packet Internet Groper

It is perhaps the most common tool to troubleshoot a network. Ping (Packet Internet Groper) is available in the most operating systems. It is invoked using a ping … Read more

Creating Subnets

There are a couple of ways of creating subnets. In this article we will subnet a class C address 192.168.0.0 that, by default, has 24 subnet bits and 8 host bits. … Read more

Private IP addresses

The concept of private IP addressing addresses the IP address exhaustion problem. The private IP addresses can be used on the private network. These can … Read more

Classes of IP addresses

TCP/IP defines five classes of IP addresses: class A, B, C, D, and E. Each class has a range of valid IP addresses. The value … Read more

Types of IP addresses

There are three different types of IP addresses based on operational characteristics: Unicast, Broadcast and Multicast. Lets go through these one by one. 1. Unicast … Read more