please help with connecting to net...

[CD-4+]

Hello to all elite backtrack users and experts.I have been facing this problem for past many months and seriously seek advice.Actually today i downloaded BT4 pre release.The configuration in Ubuntu where my pc is able to connect to internet using ethernet
on my ubuntu..
# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:13:20:73:c8:d8
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:20ff:fe73:c8d8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:81 errors:0 dropped:0 overruns:0 frame:0
TX packets:50 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6448 (6.4 KB) TX bytes:9140 (9.1 KB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:324 errors:0 dropped:0 overruns:0 frame:0
TX packets:324 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:26000 (26.0 KB) TX bytes:26000 (26.0 KB)

pan0 Link encap:Ethernet HWaddr ae:e4:dc:8f:64:f9
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

On my bt4 pre release i had to give ifconfig eth0 192.168.1.1. When i switch off my modem and again switch on ifconfig shows no ip and subnt for eth0.Again i need to setup but i am not able to connect to internet.

# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:13:20:73:c8:d8
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:64 (64.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Before when i was using backtrack 3 final the ifconfig eth0 <ipaddr>
gave:
no such device.
Here the backtrack is getting my ethernet card.. If BT4 is ubuntu based then y am i not gettin connected to net.
Please i have May have not presented things in a wise and organised manner but i desperately need help.PLEASE

[Lincoln]

/etc/init.d/networking start

[CD-4+]

thanks lincoln for ur support.. now i am able to connect to the internet..

regards
CD-4+