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 Forum index » House Training » HOWTO ( Solutions )
How to configure wifi from the commandline
Moderators: Flash, Ian, JohnMurga
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Semme

Joined: 07 Aug 2011
Posts: 2049
Location: World_Hub
PostPosted: Wed 06 Mar 2013, 16:32    Post subject:  
Yeah, it's gonna be someone else. Seems I've misplaced my ndiswrapper using card and have to bail- sorry.
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JamesTheAwesomeDude


Joined: 29 Jan 2013
Posts: 99
Location: Classified
PostPosted: Thu 14 Mar 2013, 12:48    Post subject:  
Ibidem wrote:
JamesTheAwesomeDude wrote:
Okay, I can't figure out what to do:

Wi-Fi adapter, wlan0
Connecting to wireless router with WPA2 encryption
Using the carl9170usb driver
Static (custom) local IP
Custom DNS settings

What do I need to type? The stupid carl9170 driver is really crashy, and I hate having to make 40 clicks every 5 minutes to repair the internet, so I'm just gonna stick a script on the desktop labeled "Kick the Wi-Fi adapter" or something like that, that will auto-reconnect everything.

Something like this (UNTESTED! CAUTION! YOU PROBABLY WILL NEED TO DEBUG AND CHANGE THIS!):
Code:
#!/bin/sh
IF=wlan0
#You probably want to change these.
IP=10.0.0.100
GW=0.0.0.0
#DNS: saved in /etc/resolv.conf, which should be static.

#modalias is a not-really-readable hw-specific ID that identifies one module.
read MOD </sys/class/net/${IF}/../../modalias
export MOD IF IP
start(){
wpa_supplicant -Dwext -B -c /etc/wpa.conf -i $IF
#I'm guessing the IP needs to be set after the interface is up.
#Really, this should be called via an action script, instead of dhcp
sleep 5
ifconfig $IF $IP
route add default gw $GW dev $IF
}
reload(){
wpa_cli -i $IF terminate
ifconfig $IF down
#Disable hardware encryption. Known to be desirable for AR9170 chips:
# http://linuxwireless.org/en/users/Drivers/carl9170
modprobe -r $MOD && modprobe $MOD nohwcrypt=1
}
reload && start

This assumes that the WPA config is in /etc/wpa.conf (probably not true for you!)

Hmm, couldn't manage to debug that ^, but I wrote this from scratch (many thanks to the Arch Linux Wiki):
Code:
#!/bin/sh
killall wpa_supplicant
rfkill unblock 0
modprobe carl9170
rm /run/wpa_supplicant/wlan0
ip link set wlan0 up
wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf
ip addr add 192.168.2.64/24 dev wlan0
ip route add default via 192.168.2.1

Gets everything connected in <2 seconds, much faster then "manually" clicking through all the GUI options. It can also reconnect when carl9170 dies (I do not like carl9170 one bit. >:()

Before you can use the handy-dandy script I made, you have to do this:
Code:
wpa_passphrase "Your_Wifi_SSID" "v3ry_g00d_p@$$phr@$3" >> /etc/wpa_supplicant.conf

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der-schutzhund

Joined: 26 Nov 2007
Posts: 728
Location: Blomberg / Germany
PostPosted: Sun 31 Mar 2013, 09:19    Post subject:  
I vainly trying to configure a wireless connection.
Went through the entire post and tried a lot but it does not work!
Using the Simple Network setup I can manually establish a connection but not automatically by script!
How should be a simple script?

Greetings

Wolfgang
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tempestuous

Joined: 10 Jun 2005
Posts: 4944
Location: Australia
PostPosted: Mon 01 Apr 2013, 01:17    Post subject:  
der-schutzhund wrote:
I vainly trying to configure a wireless connection.
Went through the entire post and tried a lot but it does not work!

It's not necessary to go through the entire post. The complete instructions are in the 11th post on the first page of this thread - "PART 2: WPA encryption."
http://www.murga-linux.com/puppy/viewtopic.php?p=159336#159336
Summary:
- first check your wifi router to see if it uses WPA or WPA2 encryption.
If WPA, use Geany to open /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant.conf
If WPA2, use Geany to open /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf

Add your SSID ("3210 Phone WLAN SL") and Personal Security Key (0815A31F), and save.
Assuming WPA2, you can now run a script with this -
Code:
ifconfig wlan0 up
rm /var/run/wpa_supplicant/*
wpa_supplicant -i wlan0 -D wext -c /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf -B
sleep 15
rm -f /var/lib/dhcpcd/*.info
rm -f /var/run/*.pid
dhcpcd -t 30 -h puppypc -d wlan0
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der-schutzhund

Joined: 26 Nov 2007
Posts: 728
Location: Blomberg / Germany
PostPosted: Mon 01 Apr 2013, 05:18    Post subject:  
Hi tempestuous,

thanks for the information! With these lines, it works!!!

When I work with the file /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant.conf I had to remaster it.
Otherwise I have to make entries manually every time.
How can I set up the wireless without a remaster?

Can I enter the ssid and the Personal Security Key in the script? If so how?

Greetings

Wolfgang
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der-schutzhund

Joined: 26 Nov 2007
Posts: 728
Location: Blomberg / Germany
PostPosted: Wed 03 Apr 2013, 04:44    Post subject:  
Hi,

to make everything in a script I'm writing a new file /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant.conf.

This all works very well!

Greetings

Wolfgang
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tannaroo

Joined: 17 Feb 2013
Posts: 21
PostPosted: Wed 03 Apr 2013, 12:15    Post subject:  
hi all,

can anyway point me in the right direction to write a script so that I can connect via GPRS modem. I've done it manually but would like an automatic script that connects automatically on startup?

cheers
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Antzus

Joined: 14 Apr 2013
Posts: 2
PostPosted: Sun 14 Apr 2013, 10:51    Post subject: Editing the wpa_supplicant file  
Hi all. I've used a LOT of information (as well as PET files, etc) from these fora but I've only just now created an account, because I wanted to share something I just found out.

I'm using an old 701 4G Surf Eee PC with its onboard Atheros wireless card, and Puppeee operating system installed. I've been trying all manner of things to connect to the WEP network here at my mum's place, which is shared by a couple of siblings on wifi as well as a couple of ethernet cables. I kept getting stuck somewhere at "WPA Status: Associating" without ever getting to the next step of a DHCP handshake.

After losing my sanity for about 24 hours I stumbled across this giant wpa_supplicant file, which is something of a complete list of what is possible to include: http://www.lsi.upc.edu/lclsi/Manuales/wireless/files/wpa_supplicant.conf
and in there I found the answer to my problem - to the relevant SSID section I added the line :
Code:
auth_alg=SHARED

That one little line made a world of difference to the supplicant file, and to me not having to sit on the floor in the corner using a 1m ethernet cable. So for anyone in the same situation, don't go downloading drivers, blacklisting modules or anything else I've been wasting my mental health on, try that line in your wpa_supplicant file.
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cthisbear

Joined: 29 Jan 2006
Posts: 2943
Location: Sydney Australia
PostPosted: Sun 14 Apr 2013, 21:41    Post subject:  
Antzus:

Thanks mate ....hope this helps others out....

Cheers....Chris.
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redandwhitestripes

Joined: 02 Jan 2009
Posts: 84
PostPosted: Sun 21 Apr 2013, 01:37    Post subject:  
I posted about my bizarre connection problems on the broadcom thread here:
http://www.murga-linux.com/puppy/viewtopic.php?p=698767#698767

and it was suggested I post my pdiag readout. As it's hefty, which parts of it should I post.

I will also paste here a readout after I attempted to connect from the commandline though I doubt it helps, as it still couldn't see my SSID.

Code:

# wpa_supplicant -i wlan0 -D wext -c /etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf -dd
Initializing interface ‘wlan0' conf ‘/etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf’ driver ‘wext’ ctrl_interface ‘N/A’ bridge ‘N/A’
Configuration file ‘/etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf’ -> ‘/etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf’
Reading configuration file ‘/etc/network-wizard/wireless/wpa_profiles/wpa_supplicant2.conf’
ctrl_interface='/var/run/wpa_supplicant’
ap_scan=1
update_config=1
Line: 5 - start of a new network block
ssid - hexdump_ascii(len=8):
     5a 79 58 45 4c 6e 65 77                           ZyXELnew       
scan_ssid=1 (0x1)
PSK (ASCII passphrase) - hexdump_ascii(len=10): [REMOVED]
proto: 0x2
key_mgmt: 0x2
pairwise: 0x18
group: 0x18
PSK (from passphrase) - hexdump(len=32): [REMOVED]
Priority group 0
   id=0 ssid='ZyXELnew’
SIOCGIWRANGE: WE(compiled)=22 WE(source)=19 enc_capa=0xf
  capabilities: key_mgmt 0xf enc 0xf flags 0x0
netlink: Operstate: linkmode=1, operstate=5
Own MAC address: 00:21:00:92:85:79
wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_key: alg=0 key_idx=4 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_key: alg=0 key_idx=5 set_tx=0 seq_len=0 key_len=0
wpa_driver_wext_set_countermeasures
RSN: flushing PMKID list in the driver
Setting scan request: 0 sec 100000 usec
WPS: UUID based on MAC address - hexdump(len=16): 98 74 c7 1e 86 40 58 34 9a 19 c7 75 5b f7 d1 b5
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: Supplicant port status: Unauthorized
EAPOL: KEY_RX entering state NO_KEY_RECEIVE
EAPOL: SUPP_BE entering state INITIALIZE
EAP: EAP entering state DISABLED
EAPOL: Supplicant port status: Unauthorized
EAPOL: Supplicant port status: Unauthorized
Using existing control interface directory.
Added interface wlan0
RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface ‘wlan0' added
Wireless event: cmd=0x8b06 len=8
RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface ‘wlan0' added
Wireless event: cmd=0x8b1a len=40
State: DISCONNECTED -> SCANNING
Scan SSID - hexdump_ascii(len=8):
     5a 79 58 45 4c 6e 65 77                           ZyXELnew       
Starting AP scan for specific SSID(s)
Scan requested (ret=0) - scan timeout 5 seconds
RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface ‘wlan0' added
Wireless event: cmd=0x8c02 len=29
WEXT: Custom wireless event: ‘Conn NoNetworks 03 00‘
EAPOL: disable timer tick
EAPOL: Supplicant port status: Unauthorized
Scan timeout - try to get results
ioctl[SIOCGIWSCAN]: Invalid argument
Failed to get scan results
Failed to get scan results - try scanning again
Setting scan request: 1 sec 0 usec
Starting AP scan for wildcard SSID
Scan requested (ret=0) - scan timeout 5 seconds
RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK, IFLA_IFNAME: Interface ‘wlan0' added
Wireless event: cmd=0x8b19 len=8
Received 0 bytes of scan results (0 BSSes)
BSS: Start scan result update 1
New scan results available
Selecting BSS from priority group 0
Try to find WPA-enabled AP
Try to find non-WPA AP
No suitable network found
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peebee


Joined: 21 Sep 2008
Posts: 911
Location: Malvern, Worcs, UK
PostPosted: Sun 21 Apr 2013, 02:41    Post subject:  
redandwhitestripes wrote:
I posted about my bizarre connection problems on the broadcom thread here:
http://www.murga-linux.com/puppy/viewtopic.php?p=698767#698767

and it was suggested I post my pdiag readout. As it's hefty, which parts of it should I post.

I will also paste here a readout after I attempted to connect from the commandline though I doubt it helps, as it still couldn't see my SSID.


Hi there

The output from pdiag is a .tar.gz file that you then attach to your post.

I think the significant line above could be
Code:
ioctl[SIOCGIWSCAN]: Invalid argument
which may indicate that the correct firmware isn't present, but this would mean that it is the b43 driver that is being used.

Can you run the lsmod command - is b43 or wl shown as loaded?

There are 2 links to other (maybe more up to date) b43 firmware in the "Broadcom" thread just under BACKGROUND which you may wish to try loading.

Cheers
PeeBee
_________________
HP550 laptop: 2GHz Celeron, 2GB ram, Broadcom B43 wifi, Agere HDA modem [2009]
IBM Thinkpad 600: 266MHz PII, 160MB ram, 2GB swap partition, wifi & modem via pcmcia [1999]
Desktop: AMD Athlon II X2 260 4GB, Nvidia GeForce7025[2012]
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