HOWTO: Wireless Security - WPA1, WPA2, LEAP, etc.

**ar_hnazari** · June 10th, 2008

Dear wieman01
I have a little problem with the solution you expresses here.
Every time I start my Ubuntu, I have to restart networking after logon to stablish the wifi connection, I mean it doesn't connect automatically after starting linux itself.
Will you please help me?
Thanx

**zzandeamos** · June 12th, 2008

I hope you can give me some direction, I seem to be going in circles. I think I have everything I need I just can't get the linkage to connect them properly. Here is the data you asked for in the front end......
What happens is I get the step icon in the upper right, when I put the cursor on it it says "wireless network connection to 2wire759 72%". Any web site/url I put in gives msg "address not found". The wired works fine and the wireless works with Puppy Linux, but I am using Ubuntu 8.04

fdc@ubfdc:~$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
localnet * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
default home 0.0.0.0 UG 0 0 0 eth0
---------------------------------------------------------
fdc@ubfdc:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:"" Nickname:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr

ff Fragment thr=2346 B
Power Management

ff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

--------------------------------------------------------------
fdc@ubfdc:~$ sudo iwlist scan
[sudo] password for fdc:
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: 00:14:95:C4:15:C1
ESSID:"2WIRE759"
Mode:Master
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=71/100 Signal level=-63 dBm Noise level=-127 dBm
Encryption key

n
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:tsf=0000000bd1e544a5
------------------------------------------------------------
fdc@ubfdc:~$ sudo lshw -C network
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wmaster0
version: 02
serial: 00:1b:77:85:1c:48
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 latency=0 module=iwl3945 multicast=yes wireless=IEEE 802.11g
*-network
description: Ethernet interface
product: RTL-8110SC/8169SC Gigabit Ethernet
vendor: Realtek Semiconductor Co., Ltd.
physical id: 7
bus info: pci@0000:05:07.0
logical name: eth0
version: 10
serial: 00:1b:fc:d1:e2:f0
size: 100MB/s
capacity: 1GB/s
width: 32 bits
clock: 66MHz
capabilities: pm bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.2LK duplex=full ip=192.168.0.77 latency=64 link=yes maxlatency=64 mingnt=32 module=r8169 multicast=yes port=twisted pair speed=100MB/s
--------------------------------------------------------------------------------
fdc@ubfdc:~$ sudo cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
-------------------------------------------------------------------------------
fdc@ubfdc:~$ sudo ifdown -v 2wire759
ifdown: interface 2wire759 not configured
------------------------------------------------------------------------------
fdc@ubfdc:~$ sudo ifup -v 2wire759
Ignoring unknown interface 2wire759=2wire759.
fdc@ubfdc:~$

I would appreciate any help you can send my way. Sorry about the little faces that got in there, I don't know what caused them.

Thanks
FDC

Edit-----
Here is /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface

iface wlan0 inet dhcp
wpa-psk <passphrase>
wpa-driver wext
wpa-key-mgmt WPA-PSK
wpa-proto WPA
wpa-ssid 2wire759

auto wlan0

Thank you

**dpsf** · June 13th, 2008

Hi zzandeamos/FDC,

Looks like your wireless is similar to mine. If you search the
forum you can find the posts in which I describe how I got my
Intel 3945 working on Ubuntu Hardy Heron. First, if you have a
CD handy, I would switch to a Feisty Fawn LiveCD and do a sanity
check-- my setup was working within 5-10 minutes in Feisty after
following wieman01's howto.

My own issues stemmed from the substitution of the new driver,
iwl3945, in HH, replacing ipw3945 in FF. Once I switched back to
the old driver, a little script juggling and I had networking
working in HH too.

Ciao,

dpsf.

**zzandeamos** · June 13th, 2008

Thanks dpsf, I'll look into that today.

zzandeamos

**wieman01** · June 14th, 2008

Originally Posted by gohanssjn

Can I just download wpa-supplicant somewhere?

My Ubuntu install has NO connection due to this issue, and I really need to get it up and working (and it cannot use a hardwire connection right now).

It is in the repositories... Just add it using Synaptic, the package manager.

**wieman01** · June 14th, 2008

Originally Posted by ar_hnazari

Dear wieman01
I have a little problem with the solution you expresses here.
Every time I start my Ubuntu, I have to restart networking after logon to stablish the wifi connection, I mean it doesn't connect automatically after starting linux itself.
Will you please help me?
Thanx

Please look at post #2 of this thread. It's a know problem and a workaround is described there.

**wieman01** · June 14th, 2008

Originally Posted by zzandeamos

Thanks dpsf, I'll look into that today.

zzandeamos

Keep me posted. I heard that a number of people had an issue with the Intel wireless driver... so you are not alone. Let me know if you are making progess.