Ad-hoc setup on the first computer (2)
6. In Network Authentication, select from Open, Shared, and
WPA-None. In infrastructure mode, WPA-PSK and WPA options are
available in the drop-down selection. In Windows XP SP1, you will only find Open and Shared,
unless you have installed Windows Update for WPA.
Figure: Selecting the suitable wireless (Wi-Fi) Network Authentication
(Open or Shared (WEP) and WPA-None) on the Wireless network properties window.
7. In Data encryption, select one that is suitable for your
situation. Assess your security risk. For example, you have to be
more cautious and opt for the strongest encryption if you create
your ad-hoc at a public place.
If you chose Open or Shared in Network Authentication, you will find
Disabled and WEP in Data encryption. Choose WEP if you want your
data transfer to be encrypted. If you chose WPA-None
in Network Authentication, you will find TKIP and AES in Data
encryption. Choose either TKIP or AES. AES is the strongest
encryption standard typically used if one wants to connect to a
corporate network with a RADIUS server handling
user authentication.
Figure: selecting the suitable Data encryption (Disabled, WEP, TKIP, or AES)
on the Wireless network properties window.
8. In Network key, type your encryption key as ASCII or hexadecimal
characters. ASCII characters may contain letters, numbers, and
symbols, while hexadecimal characters can only include numbers
from 0 to 9 and letters from A to F.
If you select WEP, the network key must be 5 ASCII or 10 hexadecimal characters for
64-bit encryption and 13 ASCII or 26 hexadecimal characters for
128-bit encryption. If you select WPA, the network key must be 8
to 63 ASCII or 64 hexadecimal characters. Example of a valid network
key: AD083BC1A5 for 64-bit WEP encryption.
9. In Confirm network key, retype your key.
10. Click OK on the Wireless network properties window to save changes to your wireless network.
11. Click OK on the Wireless Network Connection properties window to save changes to your wireless network adapter.
Figure: the ad hoc network name appears on the Preferred networks list
on Wireless Network Connection properties window.
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