Index_A

A

access control, passwords and, 169

access points

accidental connections and, 129

bridge mode, 11–12

client mode, 11–12

configuration errors, 132–133

definition, 249

description, 9

DHCP and, 11, 193

hubs, 11

interoperability and, 138

IP addresses and, 191–192

network settings, 193

normal mode, 11–12

print server, 11

repeater mode, 11, 13

rogue access points, 68–70

routers, 11

switches, 11

WPA, protection and, 182

accessory manufacturers, 240–241

accidental connections, 129

active devices, hubs, 5

ad hoc mode, 10, 250

ad-blocking software, 153

adapters

built-in adapters, 13–14

CF (Compact Flash) card adapters, 13–14

modes, configuration errors and, 133

PCI adapter cards, 13–14

PCMCIA card adapters, 13–14

USB, 13–14

address books, worms and, 113

addresses

classes, 35–36

DHCP and IP, 38–39

IP security, 191–193

restricted, 36

subnet masks, 38

subnets, 36–37

adjacent channels, overlap, 130

ADSL (Asymmetric DSL), 250

adware. See spyware

antennas

decibels, 140

definition, 250

Fresnel zone, 143–144

gain, 140

grounded, 142–143, 229–230

installation, configuration errors and, 133

interference and, 127

introduction, 138

mounts, 140–142

RF signals, 139

transceivers and, 139

trees and, 144–145

antispyware software, 116, 152

antivirus software

adware/spyware and, 153

drive-by downloads and, 152

hotspot protection and, 65

resource Web sites, 238–239

updates, 213

worms, 114

Application layer

OSI reference model, 27–28

TCP/IP model, 29, 30

ARP (Address Resolution Protocol), 32

attenuation

definition, 8, 250

Fresnel zone and, 144

inline attenuators, broadcast power and, 203

sniffers and, 85