web-based e-mail, 126
Web browsers, 63–64, 88–89, 99
conditional GET and, 115–116
cookies, 108–110
email access via, 126
GET requests, 104
header lines from, 107–108
parallel connections, 101–102, 282
SSL support, 631
web caches and, 110–113
Web caching, 110–116
web of trust, 631
Web page, 98
web page requests, 500–505
Web servers, 63, 99
Wechat, 675, 699
weighted fair queuing (WFQ), 328–329, 716–719
welcoming socket, 197
well-known application protocols, 195
well-known port numbers, 194
WEP. See Wired Equivalent Privacy
WFQ. See weighted fair queuing
wide-area wireless Internet access, 18
WiFi, 4, 5, 443, 520, 532
address fields, 543–545
architecture, 533–537
enterprise usage of, 16–17
frames, 542–545
link layer implementation, 443
MAC addresses in, 543–545
MAC protocol, 537–542
mobility on same IP subnet, 546–547
packet sniffing, 58
payload and CRC fields, 543
power management, 548
public, 64, 523
rate adaptation, 547–548
sequence number, duration, and frame control fields, 545
ubiquitous, 523, 552
wide-area wireless versus, 18
WiFi jungle, 535
wildcards, in flow table entries, 357
WiMAX (World Interoperability for Microwave Access), 560, 736
window scaling factor, 236
window size, 222
Wired Equivalent Privacy (WEP), 646–648
wireless communication links, 521, 525–528
differences from wired links, 525
dynamic selection of modulation techniques, 527–528
interference, 525
modulation techniques, 526–528
multipath propagation, 525
signal strength, 525
transmission power, 527
transmission rate, 527
wireless hops, 524–525
wireless hosts, 520
wireless Internet devices, 519–520
wireless LANs, 17, 439
authentication, 536–537
broadcast, 451
CDMA in, 528
4G versus, 552
infrastructure, 534
securing, 646–650
wireless mesh networks, 524
wireless networks, 590
ad hoc, 534
elements of, 520–524
handoff in, 524
higher-layer protocols and, 580–582
infrastructure and, 522–523, 524–525
mobile ad hoc, 524–525, 562
packet sniffing, 58
types of, 524–525
vehicular ad hoc, 525
wireless personal area networks (WPANs), 549–550
Wireless Philadelphia, 523
Wireshark, 58, 77–78, 487
work-conserving queuing, 327, 328
World Wide Web, 83, 98
worms, 56, 198
WPANs. See wireless personal area networks