LinuxQuestions.org - connecting to a wireless network via command line

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connecting to a wireless network via command line

Hi,

I am trying to write a script to connect my system with a wireless network. The following were the commands I tried for the same:

Quote:

#>> ifconfig wlan0 up

#>> iwlist wlan0 scan
wlan0 Scan completed :
Cell 01 - Address: 00:36:0E:10:63:53
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=33/70 Signal level=-77 dBm
Encryption key:on
ESSID:"MYNETWORK"
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
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master

#>> iwconfig wlan0 essid MYNETWORK key s:mykey

Then I ran dhclient wlan0 for which i got an message saying that dhclient is already running. so i killed that and ran 'dhclient wlan0' which eventually failed.

Can you guys help me in this?

I am not good at anything particularly with network. If this is a dumb question please ...

I am using Fedora 12 with Hp pavilion laptop.

Thanks

I would suggest that you disable encryption on your router at first. Once you have connected, then you should look into how to use wpa_supplicant to connect to a password protected router. For what it's worth, these commands allow me to connect this netbook to my router:

Code:

ip addr add 192.168.1.4 dev wlan0

ip link set wlan0 up

wpa_supplicant -B -c/etc/wpa_supplicant.conf -iwlan0 -Dwext

ip route add 192.168.1.1 dev wlan0

ip route add default via 192.168.1.1 dev wlan0

As you see I don't use dhcpd, I use static addresses on my LAN. The passwords go in /etc/wpa_supplicant.conf - read the man page to find out more.

I do a fully manual non-DHCP connection on my home network.

Code:

wireless_interface=wlan0

CURRENT_IP=192.168.2.7

CURRENT_GATEWAY=192.168.2.1

MTU=1492

ESSID="SOMENAME"

KEY="FFFF-FFFF-FFFF-FFFF-FFFF-FFFF-FF"



  iwconfig  $wireless_interface  power all

  iwconfig  $wireless_interface  txpower auto

  iwconfig  $wireless_interface  rate auto

  iwconfig  $wireless_interface  channel 6

  iwconfig  $wireless_interface  essid $ESSID

  iwconfig  $wireless_interface  mode "Ad-Hoc"

  iwconfig  $wireless_interface  key restricted $KEY

  ifconfig  $wireless_interface  $CURRENT_IP netmask 255.255.255.0 up

  ifconfig  $wireless_interface  mtu $MTU

  route add default gw $CURRENT_GATEWAY

But that's WEP encryption. And Ad-Hoc seems to be the only mode that works with my wireless drivers.

When connecting to DHCP networks over wireless I often have to set a few of the things like channel, rate, essid, and mode before running dhclient3. Sometimes I even have to set an IP address for myself before it actually works.

Something like this for the local McD's, before I realized you had to PAY for access, but CAN'T pay IN STORE.

Code:

f_WIRELESS_DHCP() {

  DHCP_CHANNEL=1

  DHCP_RATE=11

  DHCP_KEY=off

  DHCP_MODE=Managed

  DHCP_ESSID=Wayport_Access

  iwconfig $wireless_interface essid $DHCP_ESSID

  iwconfig $wireless_interface mode $DHCP_MODE

  iwconfig $wireless_interface key $DHCP_KEY

  iwconfig $wireless_interface channel $DHCP_CHANNEL

  echo "# dhclient3 $wireless_interface -s $DHCP_ESSID"

  dhclient3 $wireless_interface -s $DHCP_ESSID

}

f_WIRELESS_DHCP

But ndiswrapper isn't the most capable driver option out there IMO.

Hi Guys,

As I said, I am nobody in networking. I appreciate your response,Still I didnt get anything :-).

Will google with your responses. Thank you guys.

Thanks,