Siemens IEEE802.11 - Manual (Page 58)

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt Page 58 © Siemens, 2002
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WEP privacy mechanism
n
WEP bit in Frame Control Field indicates WEP used.
– Each frame can have a new IV, or IV can be reused for a limited time.