Installation guide

Wireless Guide 117
Advanced Features for Wireless Analysis
WEP ICV The number of packets with WEP ICV errors
sent by this station. The Wired Equivalent Policy
(WEP) is used to encrypt data sent between
stations on the wireless network. When two
stations exchange WEP-encrypted data, they
go through an authentication sequence wherein
challenge messages are encrypted and
decrypted by sender and receiver. If an Integrity
Check Value does not match between sender
and receiver, the receiver indicates a
communications failure (that is, a WEP ICV
error).
DS Channel The wireless network channel on which this
station was last seen transmitting.
ESSID The Extended Service Set ID to which this
station was last seen belonging.
WEP Key The last Wired Equivalent Policy key seen used
by this station. Each wireless station supporting
WEP encryption is programmed with four
different WEP keys it can use to encrypt data.
Possible values for this counter are:
• 0 – This station has not sent a
WEP-encrypted packet.
• 1 – The last WEP-encrypted packet seen
from this station was encrypted with WEP
key number 1.
• 2 – The last WEP-encrypted packet seen
from this station was encrypted with WEP
key number 2.
• 3 – The last WEP-encrypted packet seen
from this station was encrypted with WEP
key number 3.
• 4 – The last WEP-encrypted packet seen
from this station was encrypted with WEP
key number 4.
Signal Min Of the measured signal strengths for this
station, the lowest (expressed as a percentage).
Signal Max Of the measured signal strengths for this
station, the highest (expressed as a
percentage).
Signal Curr The average of all measured signal strengths
for this station.
Table 10-6. Host Table Counters in the 802.11 Tab (3 of 4)
Counter Description