Raspberry Pi User Manual page 79

C H A P T E R 4
Once the entry is in place, save the file by pressing CTRL + O and then quit
The device ID of wlan0 is correct if this is the first wireless device you've set up on your Pi. If
it isn't, the number at the end will be different. Type iwconfig to see a current list of wireless
devices, and change the lines in the preceding code example accordingly.
The last line of the
interfaces
which does not yet exist . This file is used by a tool known as
provide Linux with an easy way to connect to networks secured with Wireless Protected Access
(WPA) encryption .
Using , you can connect the Pi to almost any wireless network—regardless
wpasupplicant
of whether it's protected by WPA or its newer replacement WPA2—in both Advanced
Encryption Standard (AES) and Temporal Key Integrity Protocol (TKIP) modes . Despite its
name, also allows connection to wireless networks using the older Wired
wpasupplicant
Equivalent Privacy (WEP) encryption standard .
N E T W O R K C O N F I G U R A T I O N
file makes reference to a configuration file,
with CTRL + X .
nano
wpa.conf
, designed to
wpasupplicant
67
Figure 4-6:
Editing the
interfaces
file for wireless
network access
TIP
,