Giusto..

questo iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:12:A9:54:C1:3E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=59/70 Signal level=-51 dBm
Encryption key:off
ESSID:"Screamer"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
12 Mb/s; 24 Mb/s; 36 Mb/s
Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000fd82574af
Extra: Last beacon: 417ms ago
IE: Unknown: 000853637265616D6572
IE: Unknown: 010882848B960C183048
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32041224606C
trovo le informazioni che mi servono e parto con i comandi:
iwconfig wlan0 mode managed channel 1 essid Screamer
non ricevo errori di sorta e quindi controllo le associazioni:
[root@root ~]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn Mode:Managed Frequency:2.412 GHz
Access Point: Not-Associated Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
a questo punto:
ifconfig wlan0 10.1.1.55 netmask 255.255.255.0
o anche
dhclient
ma da questo momento in poi anche se la scheda wlan0 ha un ip non mi riesce proprio di navigare o associare all'AP....
il notebook in questione è un acer aspire 1825PTZ, questa la sua lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 Ethernet controller: Atheros Communications AR8131 Gigabit Ethernet (rev c0)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000