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Wireless Network Configuration?

Link to this post 23 Nov 13

The network connection icon on the top right corner shows "no network connection" but I can see all the available wireless networks. With this I assume that driver is working fine and wireless connectivity is available without access point connectivity. Here is the output for iwconfig eth1
eth1 IEEE 802.11abgn ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Bit Rate=144 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Managementmode:All packets received
Link Quality=5/5 Signal level=-256 dBm Noise level=-90 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

Then I assume it is the problem of network configuration. When I right click to Edit Connections... there are 3 tabs available for the selected connection: Wireless, Wireless Security and IPv4 Setting. The Connect automatically option is selected and for the Wireless tab I have set the SSID and Mode: Infrastructure. The security in Wireless Security tab is set to WPA & WPA2 Personal and the password is set. For IPv4 Setting tab Method: Automatic (DHCP) is set. With this configuration when I apply to connect it asks again and again for "Authentication required by wireless network" with WPA & WPA2 Personal and password information but failed to connect. The configuration files looks like this:

/etc/sysconfig/network-scripts/ifcfg-eth1
# Broadcom Corporation BCM43228 802.11a/b/g/n
DEVICE=eth1
BOOTPROTO=dhcp
ONBOOT=no
HWADDR=08:ed:b9:e1:4e:ec

/etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=localhost.localdomain

/etc/resolv.conf
# No nameservers found; try putting DNS servers into your
# ifcfg files in /etc/sysconfig/network-scripts like so:
#
# DNS1=xxx.xxx.xxx.xxx
# DNS2=xxx.xxx.xxx.xxx
# DOMAIN=lab.foo.com bar.foo.com

I had disabled the SELinux and Firewall since SELinux was preventing NetworkManager (NetworkManager_t) "execute" to ./dnsmasq (dnsmasq_exec_t).

Another issue is that when I try to save the Network Configuration (System->Administrator->Network) after editing the wireless device configuration it exits with an unhandled exception...
Component: system-config-network
Version: 1.3.99.21
Summary: TBf6c835f4 NCHardwareList.py:482:save:AttributeError: HwWireless instance has no attribute 'type'...
Also I don't know what to set in Wireless Settings tab of wireless device configuration if I will be able to save it.

With Windows 7 on the same system (dual boot) I have absolutely no issue in wireless connectivity with the following settings.
IPv4 connectivity, Access Point, Security type: WPA2-Personal and Encryption: AES

Please help to configure the wireless connection. Thanks.

Link to this post 05 Dec 13

For wpa_supplicant I followed instructions from here:
masrust.web.id/2011/07/24/linux-connect-to-wi-fi-from-command-line/
and here is the output

# lspci | grep -i net
03:00.0 Network controller: Broadcom Corporation BCM43228 802.11a/b/g/n
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07)


# iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 IEEE 802.11abgn ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Bit Rate=300 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Managementmode:All packets received
Link Quality=5/5 Signal level=-256 dBm Noise level=-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

sit0 no wireless extensions.


# ip link set eth1 up


# iwlist eth1 scanning
Cell 05 - Address: 20:AA:4BA:5D:AE
ESSID:"blade"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:5/5 Signal level:-47 dBm Noise level:-85 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 18960
Group Cipher : Proprietary
Pairwise Ciphers (6) : Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s


# iwconfig eth1 essid blade key s:************
Error for wireless request "Set Encode" (8B2A) :
SET failed on device eth1 ; Invalid argument.


# wpa_passphrase blade ************ > /etc/wpa_supplicant/wpa_supplicant.conf


# wpa_supplicant -B -Dwext -i eth1 -c /etc/wpa_supplicant/wpa_supplicant.conf
(wext) Device eth1 kernel driver name: wl.
Device eth1 kernel driver name: wl.


# iwconfig eth1
eth1 IEEE 802.11abgn ESSID:""
Mode:Managed Frequency:5.6 GHz Access Point: Not-Associated
Bit Rate=300 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Managementmode:All packets received
Link Quality=5/5 Signal level=-256 dBm Noise level=-90 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


# dhcpcd eth1
bash: dhcpcd: command not found


I checked /etc/wpa_supplicant/wpa_supplicant.conf and it has the correct essid and key. What is going wrong?

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