NEC US40a, Руководство пользователя

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14 About US40a
Security Features Available for US40a
NOTES:
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To provide the following security settings for US40a, the access
point to be used must support such settings.
„
These settings are only means to reduce security risks as much as
possible but do not secure the safety of US40a completely.
Preventing Sniffing (Intercept)
The wireless LAN of US40a supports the WEP (Wired Equivalent Privacy) feature. Defining an
encryption key by using the WEP feature, you can encrypt wireless LAN communication data
among communication devices using the specific encryption key. This can prevent the
communication data from being sniffed and the communication devices from being connected from
unrelated PCs and devices. The WEP feature is divided into three types, or 64-bit, 128-bit and 152-
bit WEPs. The wireless LAN of US40a supports all the types of WEPs.
However, third parties may get the encryption key being set or decipher it with some encryption
decipher technology. Thus, it is recommended to modify the encryption key periodically.
NOTE:
To use the WEP feature, remote communication devices must
also support the WEP feature.
Preventing Unauthorized Accesses
„
Setting a specific SSID (network name) to each of the access point and communication
devices, you can prevent any communication device without the same SSID from
connecting to US40a. However, the SSID may be known by third parties using devices
which can detect SSIDs automatically. To avoid this, the SSID must be hidden at the
access point so that the SSID may not be known.
„
If you register the MAC addresses (unique numbers assigned to network cards) of the
connected PC and other devices in the access point, any devices other than those
registered are disabled to connect to the access point (MAC address filtering).