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245U-E Wireless Ethernet Modem User Manual
Rev Version 2.24
Open or Shared Authentication Mode
WEP keys must be entered as pairs of hexadecimal digits separated by colons. Hexadecimal digits are in the
range 0–9 and A–F.
WEP Open Authentication Mode
• Station sends an authentication request to the access point.
• Access point then authenticates the station.
• Station then associates with the access point and joins the network.
WEP Shares Authentication Mode
• Station sends an authentication request to the access point.
• Access point then sends a text-based message to the station.
• Station uses its own WEP key to encrypt the text-based message and sends it back to the access point.
• Access point then decrypts the message using its on WEP key and if the key matches it authenticates
the station.
• Station then associates with the access point and joins the network.
WPA / WPA2
When WPA encryption is selected, 128-bit encryption keys are internally generated based on the
passphrase and system address (ESSID). The passphrase must be between 8 and 63 characters long, and the
passphrase must be the same for all 245U-E units in the same system. For optimal security, consider using
a passphrase consisting of a combination of letters and numbers (not a simple word or phrase), as well as
upper and lowercase. For example, “WiReLeSs TeChNoLoGy 2010.”
Figure 33
WPA