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4.2.1 Device Manufacturer
From the data collected in the field trial in Auckland CBD using the Netstumbler
software, the equipment manufacturers can be determined by comparing the first 6
alphanumerical value of the MAC address with the stored IEEE OUI (organizational
unique identifier) data gained from this website
http://standards.ieee.org/regauth/oui/oui.txt (IEEE, 2006). Below are the results for the
day scan and night scan:
4.2.1.1 Day Scan
From the data collected during the day scan, the top five manufacturers are D-Link
supplying 26.64% of the WLAN devices detected in Auckland CBD, second is Netgear
with 14.72%, third is Cisco with 11.21%, fourth is Cisco-Linksys with 10.98%, and
finally 3Com with 4.21% share. The rest of the device manufacturers detected in the
day scan are listed in Table 4.2. A more comprehensive and detailed data can be
viewed in Appendix 2.
4.2.1.2 Night Scan
Manufacturer Detected %
D-Link Corporation 114 26.64
Netgear Inc 63 14.72
Cisco 48 11.21
Cisco-Linksys 47 10.98
3Com Europe Ltd 18 4.21
Apple Computer 18 4.21
Askey Computer Corp. 15 3.50
Colubris Networks 14 3.27
Unidentified manufacturer in the OUI 14 3.27
Belkin Corporation 13 3.04
Others 64 14.95
Total 428
Table 4.2 Device manufacturer detected in day scan
From the data collected during the night scan, the top five manufacturers still begins
with D-Link leading at 22.44%, second is Netgear with 16.50%, however third is now
Cisco-Linksys at 11.88%, Cisco is fourth with 11.55%, and finally 3Com with 5.28%
share of the market. The rest of the device manufacturers detected in the night scan are
listed in Table 4.3 below. A more detailed data can also be viewed in Appendix 1.
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