ZyXEL Communications Corporation G210H Manuel D’Utilisation
ZyXEL G-210H User’s Guide
Chapter 3 Wireless LAN Network
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Wireless networks can use encryption to protect the information that is sent in the wireless
network. Encryption is like a secret code. If you do not know the secret code, you cannot
understand the message.
network. Encryption is like a secret code. If you do not know the secret code, you cannot
understand the message.
3.2.3.1 WEP
3.2.3.1.1
Data Encryption
WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between
the G-210H and the AP or other wireless stations to keep network communications private.
Both the wireless stations and the access points must use the same WEP key for data
encryption and decryption.
the G-210H and the AP or other wireless stations to keep network communications private.
Both the wireless stations and the access points must use the same WEP key for data
encryption and decryption.
There are two ways to create WEP keys in your G-210H.
• Automatic WEP key generation based on a “password phrase” called a passphrase. The
passphrase is case sensitive. You must use the same passphrase for all WLAN adapters
with this feature in the same WLAN.
with this feature in the same WLAN.
For WLAN adapters without the passphrase feature, you can still take advantage of this
feature by writing down the four automatically generated WEP keys from the Security
Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the
other WLAN adapter(s).
feature by writing down the four automatically generated WEP keys from the Security
Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the
other WLAN adapter(s).
• Enter the WEP keys manually.
Your G-210H allows you to configure up to four 64-bit, 128-bit WEP keys and only one
key is used as the default key at any one time.
key is used as the default key at any one time.
3.2.3.1.2 Authentication Type
The IEEE 802.11b/g standard describes a simple authentication method between the wireless
stations and AP. Two authentication types are defined: Open and Shared.
stations and AP. Two authentication types are defined: Open and Shared.
• Open mode is implemented for ease-of-use and when security is not an issue. The
wireless station and the AP or peer computer do not share a secret key. Thus the wireless
stations can associate with any AP or peer computer and listen to any transmitted data
that is not encrypted.
stations can associate with any AP or peer computer and listen to any transmitted data
that is not encrypted.
• Shared mode involves a shared secret key to authenticate the wireless station to the AP or
peer computer. This requires you to enable the wireless LAN security and use same
settings on both the wireless station and the AP or peer computer.
settings on both the wireless station and the AP or peer computer.
3.2.3.2 IEEE 802.1x
The IEEE 802.1x standard outlines enhanced security methods for both the authentication of
wireless stations and encryption key management. Authentication can be done using an
external RADIUS server.
wireless stations and encryption key management. Authentication can be done using an
external RADIUS server.