Networking Objectives Recap and understand the following network addressing terms – IP address – MAC address – Packet – protocol.

Slides:

Advertisements

Similar presentations

Introduction to TCP/IP TCP / IP –including 2 protocols Protocol : = a set of rules that govern the communication between different devices Protocol : =

Advertisements

Troubleshooting a “Broken LAN” Telecommunications and Networking.

Presented by Serge Kpan LTEC Network Systems Administration 1.

Lecture 1 Overview: roadmap 1.1 What is computer network? the Internet? 1.2 Network edge  end systems, access networks, links 1.3 Network core  network.

Overview of simple LANs. Networking basics: LAN TCP/IP is the protocol used in the Internet and dominates the internet and transport layers The subnet.

Networking Components

 All of you should be able to describe how a network works.  Most of you will be able to identify the main devices necessary for a network.  Some of.

CECS 474 Computer Network Interoperability Tracy Bradley Maples, Ph.D. Computer Engineering & Computer Science Cal ifornia State University, Long Beach.

Networks. ProtocolMeaningApplication DNSDomain Name System (Server)Translates domain names such as ocr.org.uk into IP Addresses TLS/SSLTransport Layer.

NETWORKING COMPONENTS Zach Avis. Hub A hub is a low cost way to connect two computers. A hub can also act as a repeater. When a signal comes from one.

CSC 412 – Networking Scott Heggen. Agenda Today The Network Layer (Chapter 5) Discussion on A2: The Data Link Layer Thursday Q2: The Networking Layer.

Basic Networking Components

The Basics of Networking. Rick Graziani What is networking? Communication! An interconnection of computers and other devices: –Printers.

© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 Network Addressing Networking for Home and Small Businesses – Chapter.

Module 4 - Networking MIS5122: Enterprise Architecture for the IT Auditor.

AS Computing F451 F451 Data Transmission. What data is transmitted? Phone SMS Radio TV Internet.

Common Devices Used In Computer Networks

HUB Connects multiple workstations, servers, and other devices to a network. Can be used to connect two or more computers to one network port. Handles.

Networking & the Internet. 2 What is a Network? □ A computer network allows computers to communicate with many other computers and to share resources.

HNC COMPUTING - Network Concepts 1 Network Concepts Devices Introduction into Network Devices.

Network Addresses, Switches and Routing Bob Bradley IS361 Fall 2005 Chapter 1 Part 2.

Information Flow Across the Internet. What is the Internet? A large group of computers that link together to form the Worldwide Area Network (WAN)

First, by sending smaller individual pieces from source to destination, many different conversations can be interleaved on the network. The process.

INTRANETS MR ROSS UNIT 3 IT APPLICATIONS. DEFINITION An intranet is an internal, secured environment that has a similar look and feel to the Internet,

IP addresses IPv4 and IPv6. IP addresses (IP=Internet Protocol) Each computer connected to the Internet must have a unique IP address.

Individual Project 1 Sarah Pritchard. Fran, a customer of your company, would like to visit your company’s website from her home computer… How does your.

NETWORK COMPONENTS BY REYNALDO ZAMORA. HUB Hubs are devices that serve as the central connection for a network. Its job is to send data from one computer.

1 Syllabus at a glance – CMCN 6103 Introduction Introduction to Networking Network Fundamentals Number Systems Ethernet IP Addressing Subnetting ARP DNS.

Networking Components William Isakson LTEC 4550 October 7, 2012 Module 3.

DIYTP Network Basics  How do computers communicate?  Network Interface Card (NIC)  Media Access Control Address (MAC)  Unique to each NIC 

.  Hubs send data from one computer to all other computers on the network. They are low-cost and low-function and typically operate at Layer 1 of the.

Networking Components Quick Guide. Hubs Device that splits a network connection into multiple computers Data is transmitted to all devices attached Computers.

CSC 116 Nov Administrative Required 2 nd exam will be next week on Wed  Nov 18th It will be short (10 questions) It will only cover chapters.

The OSI Model An ISO (International standard Organization) that covers all aspects of network communications is the Open System Interconnection (OSI) model.

Chapter 3.  Help you understand what hardware is required to allow networks to work including: ◦ Repeaters ◦ Hub ◦ Switch ◦ Bridge ◦ Gateway (not needed.

Also known as hardware/physi cal address Customer Computer (Client) Internet Service Provider (ISP) MAC Address Each Computer has: Given by NIC card.

Ethernet, WiFi & Protocols

Networking Objectives

Chapter Objectives In this chapter, you will learn:

Networking Objectives

Internet Protocol Address

Transfer of data in ICT systems

Networks Keywords Network Hardware

How is all that data traffic controlled on the Internet?

Networking for Home and Small Businesses – Chapter 5

Section 4 – Computer Networks

Local Area Networks Yiannos Mylonas.

Click to edit Master subtitle style

Internet Hardware.

NETWORK TOPOLOGIES There are three basic configurations used to connect computers they are the Bus Ring Star.

Lec 2: Protocols.

Em4 Ethernet tutorial Remote connection.

Troubleshooting a “Broken LAN”

Net431:advanced net services

Networking for Home and Small Businesses – Chapter 5

Packet Sniffing.

Topic 5: Communication and the Internet

Packets, Protocols & Addresses

Network Models, Hardware, Protocols and number systems

Communications & Computer Networks Resource Notes - Network Hardware

Protocols 1 Key Revision Points.

Computer communications

TCP/IP Protocol Suite: Review

Network Hardware and Protocols

Click to edit Master subtitle style

Protocols 2 Key Revision Points.

Protocols & Packet Switching

Read this to find out how the internet works!

Networking 101.

Computer Networks Lesson 2.

Presentation transcript:

Networking Objectives Recap and understand the following network addressing terms – IP address – MAC address – Packet – protocol

Networking IP address Every computer has a unique IP address. This allows computers to direct packets of data to the correct PC’s. IP address is split into 4 sets of numbers ranging from 0 to 255. A example IP address would be – You can find out the IP address of the computer your currently working on by running “getNetworkInfo” program!” A IP address can be changed by a network administrator or could be set by an ISP. (internet service provider)

Networking MAC address A MAC address is a hardware address and can not be changed. It is set up when the network device is created. It is made up of 6 sets of 2 hex values. Eg 8a-91-BF-1C-8A-FC MAC addresses are used by network devices, such as a switch, to route packets correctly. MAC addresses are not changeable which means that it is a more accurate way of identifying a PC. It is very common for security mechanism in networks to use MAC addresses rather than IP addresses. For example our wireless network has a list of allowed MAC addresses. All other devices are blocked. So even if you got the password you would still not be able to access the network on your own laptop!

Networking Activity Open the program “getNetworkInfo” and note down your IP address. Build a list of all of the students in the group and their IP addresses and MAC addresses. Are the addresses random or do they share any similarities. Hint – have a think about how you are going to do this. Working in a team will make this task easier!

Networking Activity Make notes on – What is a MAC address? What is the difference between a IP and MAC address?

Networking Packets This video will help you remember what a packet is! Warriors of the net

Networking Activity Check you have notes on the following – IP address MAC address LAN / WAN Packet Hub Switch Router NIC card

Networking Protocols A protocol is a set of rules which govern the communication between two devices. In order for computers to understand each other they must speak the same language. Exactly the same as humans! In networking this means they must choose the same protocol.

Networking Using the same protocol Packet A protocol must be selected by each PC. When a packet is created the protocol will add some information to the packet. This is known as a header. TCPUDP TCP

Networking Using the same protocol Packet If the destination PC is using a different protocol then it will not understand the packet! TCP UDP TCP

Networking Using the same protocol Packet In order for packets to be understood the same protocol must be used. In this case both PC’s are using “TCP”. TCP

Networking Protocol note! There are many different protocols in use. You do not need to know what they do!

Networking Activity Make notes on – What is a protocol?