How to enable Wireless in Ubuntu manually?

Laptop: Acer TravelMate 6000

Wireless device: ipw2200

user@planetmy~$cd /sys/devices
user@planetmy~$cd pci0000\:00/0000\:00\:1e.0/0000\:02\:04.0/
user@planetmy~$cat rf_kill
0

user@planetmy~$setkeycodes

user@planetmy~$sudo iwconfig eth1 essid SSID_KEY
enc on key 12345678901234567890123456

user@planetmy~$sudo dhclient eth1
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:0e:35:17:4a:8b
Sending on   LPF/eth1/00:0e:35:17:4a:8b
Sending on   Socket/fallback
DHCPREQUEST on eth1 to 255.255.255.255 port 67
DHCPACK from 192.168.1.2
bound to 192.168.1.101 -- renewal in 2846 seconds.

user@planetmy~$sudo ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 00:0E:35:17:4A:8B
          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:35ff:fe17:4a8b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:37577 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33255 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000
          RX bytes:40053717 (38.1 MiB)  TX bytes:4125228 (3.9 MiB)
          Interrupt:10 Base address:0x8000 Memory:e0214000-e0214fff

user@planetmy~$ping google.com
PING google.com (72.14.207.99) 56(84) bytes of data.
64 bytes from 72.14.207.99: icmp_seq=1 ttl=238 time=297 ms
64 bytes from 72.14.207.99: icmp_seq=2 ttl=238 time=296 ms

--- google.com ping statistics ---
3 packets transmitted, 2 received, 33% packet loss, time 2001ms
rtt min/avg/max/mdev = 296.863/297.355/297.847/0.492 ms