Wireless Connection Problems

In short, this is the message after running dhclient.
...
No DHCPOFFERS received.
No working leases in persistent database - sleeping

What I have done:
cat /etc/network/interfaces // to get interface
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

I used wicd manager and it tells me "This network requires encryption to be enable.d" Is the encryption sshd?

Questions:
How am I supposed to get my Internet connection up?

Where am I supposed to enter the password for my access point?

What is the difference between ath0 and wlan0? Are they both wireless?

How am I supposed to know what the nameserver is supposed to be?

I am actually using backtrack but I got no ubuntu experience.

In short, this is the message after running dhclient.
...
No DHCPOFFERS received.
No working leases in persistent database - sleeping

What I have done:
cat /etc/network/interfaces // to get interface
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

I used wicd manager and it tells me "This network requires encryption to be enable.d"

iwconfig reveals that my network is IEEE802.11bg ESSID "MSHOME" meaning network is detected.

Questions:
How am I supposed to get my Internet connection up?


Where am I supposed to enter the password for my access point?
(I am using a MiO box. Singaporeans will know what I mean)

What is the difference between ath0 and wlan0? Are they both wireless?

How am I supposed to know what the nameserver is supposed to be?

You might to read http://www.backtrack-linux.org/forum...backtrack.html
And not just the first page.

I'm fairly new to backtrack but I'll try to help.

when backtrack starts up type the following:

/usr/bin/start-network
startx

That will start "Wicd" network manager.

When the GUI starts up, you'll see a little network icon in the taskbar, click on it. In the window that opens up, you can hit "refresh" if needed to scan for your AP. When it finds it, you can click the little arrow below it to get to prefrences. From there you can select encryption type such as wep or wpa, ect and enter your key there. That should fix you up. If not you might have to play around with the preferences in wicd a bit. Hopefully this helps.

What wireless card/chipset are you using.

What type of encryption are you using on your network?
For WEP use iwconfig 'insert interface here' enc ********** or iwconfig 'insert interface here' key **********
For WPA you will need to use WPA_supplicant

Because once wasn't enough..... http://www.backtrack-linux.org/forum...-problems.html

http://www.backtrack-linux.org/forum...ad-thread.html

http://www.backtrack-linux.org/forum...beginners.html

http://www.backtrack-linux.org/forum...backtrack.html

1. Follow the guide in the how-to section. Stickied at the top.
2. What's difference between eth0, wlan0, wifi0 ath0 etc. - NetStumbler.org Forums
3. You either now the nameserver because you set it or you ask your admin.


EDIT: Threads merged.