TCP/IP Protocols - The Core Protocols

CompTIA Network + Domain:

Domain 1.0: Networking Concepts
Domain 3.0: Network Operations

CompTIA Network + Objective:

Objective 1.1: Explain the purpose and uses of ports and protocols.
Objective 3.3: Explain common scanning, monitoring, and patching processes and summarize their expected outputs.

Overview

This lab will review protocols that operate at the internetwork and transport layers of Transmission Control Protocol/Internet Protocol (TCP/IP). These protocols are internetwork layer protocols such as Address Resolution Protocol (ARP), Internet Control Message Protocol (ICMP), and Internet Protocol (IP), and transport layer protocols such as User Datagram Protocol (UDP) and Transmission Control Protocol (TCP). Students will review Internet Protocol (IP) address configurations, discover facts about network communication using ICMP and the ping utility, and examine the TCP/IP layers and become familiar with their status and function on a network.

Outcomes:

In this lab, you will learn to:

  1. Use network utilities and protocols from the TCP/IP suite.
  2. Use a network packet analyzer, Wireshark, to examine the ARP protocol.
  3. Capture and analyze transport layer packets.
Courses

Key terms and descriptions

TCP/IP
The Internet protocol suite is the conceptual model and set of communications protocols used in the Internet and similar computer networks.
ARP
The Address Resolution Protocol is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address.
ICMP
The Internet Control Message Protocol is a supporting protocol in the Internet protocol suite. It is used by network devices, including routers, to send error messages and operational information indicating success or failure when communicating with another IP address.
IP
The Internet Protocol is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet.
TCP
The Transmission Control Protocol is a connection-oriented protocol that runs at the transport layer of the OSI model.
UDP
The User Datagram Protocol is a connection-less protocol that runs at the transport layer of the OSI model