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Introduction to Networking Andrew Hamilton TJ IT Technician
Networks Connect Computers together Share resources – Printers – Storage – Internet Access – Applications
LANs vs WANs Local Area Network – Internal to one site Wide Area Network – Connect multiple sites together The Internet – A very large WAN
Layer 1: Physical The actual paths for data to travel on Multitude of standards – Ethernet (Copper or Fiber) – Wireless – ATM – Dialup – DSL – MoCA
Layer 2: Data Link Operates based on MAC Address – Wireless Access Points (WAPs) – Switches – Hubs – Bridges
Layer 3: Network Layer Packets Operates on Internet Protocol (IP Address) – IPv4 – IPv6 Routers L3 Switches Address Resolution Protocol (ARP) Neighbor Discovery Protocol (NDP) Firewalls
Layer 3: IP Addressing IPv4 ( ) IPv6 – 2001:468:cc0:1600:0:c6ff:fe26:102f – 2001:468cc0:1600::c6ff:fe26:102f Netmasks – – 2001:468:cc0:1600::/64
Layer 3: Reserved Addrs IPv4 – /8, /12, /16 – /4 (multicast) IPv6 – Fe80::/10 (link local) – Fc00::/7 (unique local addresses)
Layer 4: Transport Layer Protocols – User Datagram Protocol (UDP) – Transmission Control Protocol (TCP) – Internet Control Message Protocol (ICMP) Ports – Permanent (0-1023) – Registered ( ) – Dynamic ( )
Upper Layers Layer 5: Session Layer Layer 6: Presentation Layer Layer 7: Application Layer “Layer 8”: User Layer “Layer 9”: Religious/Political Layer
Utilities ipconfig / ifconfig ping / ping6 arp nslookup tracert / traceroute(6)
Any Questions? Contact Info:
DIYTP Network Basics How do computers communicate? Network Interface Card (NIC) Media Access Control Address (MAC) Unique to each NIC
Wireless Networking. Wireless Standards a b g n.
1 Bus topology network. 2 Data is sent to all computers, but only the destination computer accepts 02608c
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The OSI Model An ISO (International standard Organization) that covers all aspects of network communications is the Open System Interconnection (OSI) model.
© 2007 Cisco Systems, Inc. All rights reserved.ICND1 v1.0—1-1 Building a Simple Network Exploring the Packet Delivery Process.
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CTC 228 – Computer Networks Fall 2015 Instructor: Robert Spengler.
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Presented by Rebecca Meinhold But How Does the Internet Work?
Chapter 9 Introduction To Data-Link Layer Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
IST 201 Chapter 9. TCP/IP Model Application Transport Internet Network Access.
CISCO PACKET TRACER By:- Ankita Rawat Sohit Mehta Sukhwinder Singh.
Operating Systems Lesson 10. Networking Communications protocol is the set of standard rules for ◦ Data representation ◦ Signaling ◦ Authentication ◦
Physical Net. Access IP TCP/UDP Application Physical Net. Access IP TCP/UDP Application Physical Net. Access Physical Net. Access IP Physical Net. Access.
Network Basics CS490 - Security in Computing Copyright © 2005 by Scott Orr and the Trustees of Indiana University.
Discovery 2 Internetworking Module 2 JEOPARDY K. Martin.
1 Objectives Identify the basic components of a network Describe the features of Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6)
Fall 2004FSU CIS 5930 Internet Protocols1 TCP/IP Protocol Suite Reading: Chapter 13.
CS 356 Systems Security Spring Dr. Indrajit Ray
Network Layer 3 Application Presentation Session Transport Network Data Link Physical OSI Model.
Ethernet Network Fundamentals. Objectives Identify the basic characteristics of network media used in Ethernet. Describe the physical and data link features.
Network – internet – part2 Address at diff. layers Headers at diff. layers Equipment at diff. layers.
TCP/IP Honolulu Community College Cisco Academy Training Center Semester 2 Version 2.1.
Addressing the Network IPv4 CCNA Exploration Semester 1 Chapter 6.
Cisco Confidential © 2013 Cisco and/or its affiliates. All rights reserved. 1 Cisco Networking Training (CCENT/CCT/CCNA R&S) Rick Rowe Ron Giannetti.
Also known as hardware/physi cal address Customer Computer (Client) Internet Service Provider (ISP) MAC Address Each Computer has: Given by NIC card.
Network Layer by peterl. forwarding table routing protocols path selection RIP, OSPF, BGP IP protocol addressing conventions datagram format packet handling.
Workshop 1: Introduction to TCP/IP. What Is TCP/IP? Installing and Configuring Microsoft TCP/IP Testing Microsoft TCP/IP with IPCONFIG and PING Microsoft.
TCP/IP. The Internet Protocol Suite is the set of communications protocols used for the Internet and other similar networks. It is commonly also known.
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Shalini Bhavanam. Key words: Basic Definitions Classification of Networks Types of networks Network Topologies Network Models.
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