Linksys WRT54G Ultimate Hacking

Linksys WRT54G Ultimate Hacking

1st Edition - June 19, 2007

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  • Authors: Paul Asadoorian, Larry Pesce
  • eBook ISBN: 9780080556130
  • Paperback ISBN: 9781597491662

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This book will teach the reader how to make the most of their WRT54G series hardware. These handy little inexpensive devices can be configured for a near endless amount of networking tasks. The reader will learn about the WRT54G’s hardware components, the different third-party firmware available and the differences between them, choosing the firmware that is right for you, and how to install different third-party firmware distributions. Never before has this hardware been documented in this amount of detail, which includes a wide-array of photographs and complete listing of all WRT54G models currently available, including the WRTSL54GS.Once this foundation is laid, the reader will learn how to implement functionality on the WRT54G for fun projects, penetration testing, various network tasks, wireless spectrum analysis, and more! This title features never before seen hacks using the WRT54G. For those who want to make the most out of their WRT54G you can learn how to port code and develop your own software for the OpenWRT operating system.

Key Features

  • Never before seen and documented hacks, including wireless spectrum analysis
  • Most comprehensive source for documentation on how to take advantage of advanced features on the inexpensive wrt54g platform
  • Full coverage on embedded device development using the WRT54G and OpenWRT


Computer users, security professionals (such as a penetration tester), hardware hackers, and network/system administrators.

Table of Contents

  • Chapter 1 - About the WRT54G - The History of the Linksys WRT54G, Linksys WRT54G/WRT54GL Hardware, Linksys WRT54GS Hardware, WRTSL54GS (WRT54G + USB = Awesome)

    Chapter 2 - WRT54G Family Firmware , Installation Methods (Web Interface, TFTP, Serial), Firmware (OpenWRT, DD-WRT), Securing firmware

    Chapter 3 - WRT54G Fun Projects - Community Bulletin board , Wireless Honeypot , Wardriving In-A-Box , Wireless range extender , Wireless Gaming Adapter , Captive portal , Asterisk

    Chapter 4 - Securing wireless using a WRT54G - Introduction to WPA/WPA2 (802.11i), Configuring WPA-PSK , Configuring WPA-Enterprise , Authentication Methods – 802.11x, Radius, etc

    Chapter 5 - WRT54G For Penetration Testers - Installing and configuring FeruziaWRT , Security Tools using OpenWRT (Nessus, Kismet, Snort, WiSpy)

    Chapter 6 - WRT54G Hardware Hacking - Fun with Wireless Antennas , Adding Ports: USB, Serial, JTAG, Resetting the firmware, Making a battery pack, Attaching it to your laptop, WRT54G projectile wireless network destruction

    Chapter 7 - Developing Software for the WRT54G - Tools required, Coding and Testing, Making Packages

    Chapter 8 - Troubleshooting WRT54G - Debug Modes, Recovering from a bad flash – de-bricking

Product details

  • No. of pages: 384
  • Language: English
  • Copyright: © Syngress 2007
  • Published: June 19, 2007
  • Imprint: Syngress
  • eBook ISBN: 9780080556130
  • Paperback ISBN: 9781597491662

About the Authors

Paul Asadoorian

Paul Asadoorian (GCIA, GCIH) is the Lead IT Security Engineer for a large University in the New England area. In the past 6 years he has been responsible for intrusion detection, firewalls, VPN, and networking assessments/penetration testing in the educational IT space. He speaks frequently on topics such as wireless security at various events, such as MIT Security Camp. Paul’s research has been featured in numerous publications such as Network Intrusion Detection, 3rd edition,, and the SANS Reading Room. In addition to owning and operating an independent security consulting company, Defensive Intuition, Paul is also the host of PaulDotCom Security Weekly (, a weekly podcast discussing IT security news, vulnerabilities, hacking, and research, including interviews with some of the top security professionals. Paul graduated from Bryant College with a degree in Computing and Information Systems, and is currently on the SANS GIAC advisory board. When not trying to hack something Paul can be found spending time with his wife and pug, Rocco.

Affiliations and Expertise

(GCIA, GCIH), Lead IT Security Engineer

Larry Pesce

Larry Pesce (CCNA, GCFA Silver, GAWN Gold) is the Manager for Information Services Security at a mid-sized healthcare organization in New England. In the last 13 years in the computer industry, Larry has become a jack of all trades; PC repair, Network Engineering, Web Design, Non-Linear Audio and Video production and Computer Security. Larry is also gainfully employed as a Penetration Tester / Ethical Hacker with Defensive Intuition, a Rhode Island based security consulting company. A graduate of Roger Williams University in Computer Information Systems, Larry is currently exploring his options for graduate education. In addition to his industry experience, Larry is also a Security Evangelist and co-host for the PaulDotCom Security Weekly podcast at More of Larry’s writing, guides and rants can be found on his blog at and the SANS Reading Room.

Affiliations and Expertise

(CCNA, GCFA Silver, GAWN Gold), Manager for Information Services Security

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