securing wireless technology another professional and intellectual presentation of phillip speagle
TRANSCRIPT
Sample Network Infrastructure
Wireless Standards
Accessing Wireless Router
GUI
Wireless Security Setup
• Service Set Identifier (SSID)
• Password (GUI Interface)
• MAC Filtering• Encryption
Contents
What You Need
• At&t, Charter, Embark, Time Warner
Hi-speed Internet Access
• Computer, Ipad, Game system, etc
Wireless Device
• Motorola, Belkin, Dlink, Linksys
Cable/DSL Modem
• Linksys, Dlink, Belkin, Netgear
Wireless Router
• U.S. Curreny, Pesos, Yen, or Deblumes
Money
Wireless Standards
• 5ghz, 54Mbps, 50ft Range
802.11a
• 2.4ghz, 11Mbps, 90-100ft. Range
802.11b
• 2.4ghz, 54Mbps, 90-100ft. Range
802.11g
• 2.4 or 5ghz, 144Mps, 150ft Range
802.11n
Accessing Web Based Utility
• Username: <blank> Password: admin
Linksys Routers
(192.168.1.1)
• Username: admin Password: <blank>
D-Link Routers (192.168.0.1)
• Username: admin Password: password
Netgear Routers
(192.168.0.1)
• Username: admin Password: <blank>
Belkin Routers (192.168.2.1)
Be sure to always check
your documentation
Linksys Simulation
Wireless Security Setup (SSID)
• Name of your wireless network
Establish a new SSID
• Routers default by broadcasting the SSID to devices
Turn off broadcast
Wireless Security Setup (Default Password)
Change the default web utility password
Choose an alpha-numeric password
For example: Hellokitty80, or H3ll0k1tty80!
Each network card has a special 10-digit identifier, sometimes referred to as Physical Address. For example: 00-12-5E-8A-99
Wireless Security Setup (MAC Filtering)
Wireless Security Setup (Encryption)
WEP
• Wired Equivalent Privacy• Introduced in 1997• Old insecure encryption
TKIP
• Temporal Key Integrity Protocol• Dynamically changes the key as the
system is used• Replaced WEP as a more secure encryption
CCMP
• 128-bit encryption• Data Confidentiality, ensures only
authorized parties can access the information
Improve Your Network
Replace standard antenna with a hi-gain antenna
Make sure Signal-to-Noise Ratio is 25dB or higher. Optimum is >40dB
Centralize your wireless router
Use equipment from the same company. (For ex. Linksys router with Linksys wireless cards)
Add a wireless repeater
Reduce interference from cordless phones and other 2.4ghz devices such as microwaves
Update router firmware and wireless cards