Planex MZK-WDPR, User Manual

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System Configuration
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5
WMM Acknowledge Policy – By default, all wireless data transmissions require the
sender to wait for an acknowledgement from the receiver. WMM allows the
acknowledgement wait time to be turned off for each Access Category (AC). Although this
increases data throughput, it can also result in a high number of errors when traffic levels
are heavy. (Default: Acknowledge)
WMM BSS Parameters – These parameters apply to the wireless clients.
WMM AP Parameters – These parameters apply to the access point.
• logCWMin (Minimum Contention Window) – The initial upper limit of the random backoff
wait time before wireless medium access can be attempted. The initial wait time is a
random value between zero and the CWMin value. Specify the CWMin value in the
range 0-15 microseconds. Note that the CWMin value must be equal or less than the
CWMax value.
• logCWMax (Maximum Contention Window) – The maximum upper limit of the random
backoff wait time before wireless medium access can be attempted. The contention
window is doubled after each detected collision up to the CWMax value. Specify the
CWMax value in the range 0-15 microseconds. Note that the CWMax value must be
greater or equal to the CWMin value.
• AIFS (Arbitration Inter-Frame Space) – The minimum amount of wait time before the
next data transmission attempt. Specify the AIFS value in the range 0-15 microseconds.
• TXOP Limit (Transmit Opportunity Limit) – The maximum time an AC transmit queue
has access to the wireless medium. When an AC queue is granted a transmit
opportunity, it can transmit data for a time up to the TxOpLimit. This data bursting greatly
improves the efficiency for high data-rate traffic. Specify a value in the range 0-65535
microseconds.
• Admission Control – The admission control mode for the access category. When
enabled, clients are blocked from using the access category. (Default: Disable)
WLAN Security
The Multimedia Router’s wireless interface is configured by default as an “open system,”
which broadcasts a beacon signal including the configured SSID. Wireless clients with a
configured SSID of “ANY” can read the SSID from the beacon, and automatically set their
SSID to allow immediate connection to the wireless network.
To improve wireless network security, you have to implement two main functions:
• Authentication – It must be verified that clients attempting to connect to the network
are authorized users.
• Traffic Encryption – Data passing between the unit and clients must be protected from
interception and eavesdropping.
For a more secure network, the Multimedia Router can implement one or a combination
of the following security mechanisms:
• Wired Equivalent Privacy (WEP)
The security mechanisms that may be employed depend on the level of security required,
the network and management resources available, and the software support provided on
wireless clients. Click on “Wireless Settings,” followed by “Security”.