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Introduction to Wireless and Mobile Networks © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning. ©NOT Jones FOR SALE & OR Bartlett DISTRIBUTION. Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALEPART OR DISTRIBUTION ONE © Rodolfo Clix/Dreamstime.com Introduction to Wireless © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOTand FOR SALEMobile OR DISTRIBUTION Networks © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTIONThe Evolution of Data NetworksNOT FOR 3SALE OR DISTRIBUTION The Evolution of Wired Networking to Wireless Networking 31 © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION The MobileNOT Revolution FOR SALE XX OR DISTRIBUTION Security Threats Overview— Wired, Wireless, and Mobile XX © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning. ©NOT Jones FOR SALE & OR Bartlett DISTRIBUTION. Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning. ©NOT Jones FOR SALE & OR Bartlett DISTRIBUTION. Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Rodolfo Clix/Dreamstime.com CHAPTER © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION The Evolution of Data Networks 1 © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FORNE SALE OF THE OR MOST DISTRIBUTION PROFOUND CHANGES in network securityNOT FORover the SALE OR DISTRIBUTION past 10 to 15 years has been the untethering of network connectivity. OThe ability to log on to both the Internet and corporate networks without having to physically connect a computer to the network via an Ethernet cable © Jones & Bartletthas Learning,radically altered LLC the culture and has greatly© Jones blurred & Bartlettthe line between Learning, work LLC NOT FOR SALE lifeOR and DISTRIBUTION personal life. NOT FOR SALE OR DISTRIBUTION Although most people view the resulting changes as a net positive, both wireless and mobile networking have introduced signifi cant security vulnerabilities to networking© Jones in general. & Bartlett These vulnerabilities, Learning, LLC along with prevention and© Jones & Bartlett Learning, LLC detection methods,NOT FOR are SALEthe focus OR of DISTRIBUTION this text. Before jumping into the detailsNOT FOR SALE OR DISTRIBUTION of wireless and mobile network security, however, let’s take a look at how these profound changes came about. © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION Chapter 1 Topics This chapter covers the following concepts and topics: © Jones & Bartlett Learning,• How LLC early forms of data communication© Jones worked & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION• How mobile phones evolved NOT FOR SALE OR DISTRIBUTION • How computers went mobile • How mobile and data networks converged • What the impact of the bring your own device (BYOD) trend is © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC • NOTWhat theFOR basic SALE tenets OR of network DISTRIBUTION security are NOT FOR SALE OR DISTRIBUTION • How cybercrime has evolved • How wireless network security is achieved • How Mobile IP security is achieved © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION 3 © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning. ©NOT Jones FOR SALE & OR Bartlett DISTRIBUTION. Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION Chapter© Jones 1 Goals & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC WhenNOT you FOR complete SALE this ORchapter, DISTRIBUTION you will be able to: NOT FOR SALE OR DISTRIBUTION • Describe the evolutionary history of networking • Relate the three core principles of network security • Describe the security concerns specifi c to wireless networking © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE• Describe OR DISTRIBUTION the security concerns specifi c to mobile NOTnetworking FOR SALE OR DISTRIBUTION • Relate the IT policies employed to ensure the security of wireless and mobile networks © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION The Dawn of Data Communication Data communication and networking have a long history going back to 1835, when Samuel© Jones Morse developed& Bartlett the Learning,fi rst practical LLC telegraph system. In 1844, ©Morse Jones sent &his Bartlett Learning, LLC fi rstNOT long-distance FOR SALE message, OR “What DISTRIBUTION hath God wrought!” encoded in MorseNOT code, FOR from SALE OR DISTRIBUTION Washington, D.C., to Baltimore, Maryland. By 1850, more than 12,000 miles of telegraph lines traversed the country, run by more than 20 different commercial operators. Telegraphy, as it was known, used start and stop signals of dots and dashes transmitted © Jones &over Bartlett copper Learning, wires. It was LLCa one-way message protocol ©that Jones evolved & to Bartlett support two Learning, and LLC later even four channels. Telegraphy monopolized electronic communication until 1877, NOT FOR SALEwhen the OR fi rst DISTRIBUTION telephone networks started to appear. NOT FOR SALE OR DISTRIBUTION Despite reservations that telephones would be too technical for the common man, telephony was quickly adopted. Indeed the telephone system quickly usurped telegraphy in terms of traffi c carried, revenue generated, and network coverage. Telephony, however, © Jones & Bartlett Learning,was limited LLC to voice. Therefore, despite© telegraphy Jones & losing Bartlett out to Learning, the telephone LLC as the NOT FOR SALE OR DISTRIBUTIONpopular means for interpersonal communications,NOT FOR SALE it remained OR anDISTRIBUTION effective medium for carrying digital data traffi c. In 1923, the fi rst teletypewriter services came into being, serving the need for true and accurate communications. By 1930, AT&T had launched a high-speed telex service, the Teletypewriter Exchange Service (TWX). This was followed in 1935 by the introduction of rotary-dial© Jones telex & services. Bartlett All Learning,these telex, telegraph, LLC and TWX networks© existed Jones indepen- & Bartlett Learning, LLC dently,NOT as separateFOR SALE and distinct OR DISTRIBUTION entities from the public switched telephoneNOT network FOR (PSTN) SALE. OR DISTRIBUTION By the 1950s the PSTN had become ubiquitous and affordable, in large part due to broad interconnectivity, creating a network effect. The PSTN could interconnect telephones from anywhere in the community, the country, or even internationally over its network of exchanges. To accomplish this, a hierarchy of networks connected local exchange © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION 4 © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning. ©NOT Jones FOR SALE & OR Bartlett DISTRIBUTION. Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION 1 CHAPTER 1 | The Evolution of Data Networks 5 The Evolution of Data Networks carriers (LECs)© Joneswith regional, & Bartlett national, Learning, and international LLC © Jones & Bartlett Learning, LLC carriers via interexchange carriers (IXCs). It was this NOTE NOT FOR SALE OR DISTRIBUTION NOT FOR SALE
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