SMC Networks SMC Barricade g SMC2804WBR - Manual (Page 61)

ADVANCED SETUP
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Four keys will be generated. Choose a key ID (1-4) from the
drop-down list or accept the default key.
If you use encryption, configure the same keys used for the
Router on each of your wireless clients. Note that Wired
Equivalent Privacy (WEP) protects data transmitted between
wireless nodes, but does not protect any transmissions over your
wired network or over the Internet.
WPA
Wi-Fi Protected Access (WPA) combines Temporal Key Integrity
Protocol (TKIP) and 802.1x mechanisms. It provides dynamic
key encryption and 802.1x authentication service. With TKIP,
WPA uses 48-bit initialization vectors, calculates an 8-byte
message integrity code, and generates an encryption key
periodically. For authentication, it allows you to use 802.1x
authentication for an environment with a RADIUS server installed
on your network. Selecting the Pre-shared Key enables WPA to
use the pre-shared key in a SOHO network.