Madwifi - connected to AP but can't get IP

[saneisjustaword]

I'm using Madwifi, and I can get my card up, and I can connect to the access point, and scan for access points, but I can't obtain an ip. I know its DHCP, and I can connect over ethernet with dhclient. Any ideas?
I followed this tutorial http://madwifi.org/wiki/UserDocs/FirstTimeHowTo and everything works fine, up untill the point at which I run 'dhclient ath0' . I get this output

lostboys:/home/saneisjus# dhclient ath0

sit0: unknown hardware address type 776
wifi0: unknown hardware address type 801
sit0: unknown hardware address type 776
wifi0: unknown hardware address type 801
Listening on LPF/ath0/00:11:f5:5d:0e:47
Sending on   LPF/ath0/00:11:f5:5d:0e:47
Sending on   Socket/fallback/fallback-net
DHCPREQUEST on ath0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
SIOCADDRT: File exists
bound to 192.168.0.100 -- renewal in 432000 seconds.
lostboys:/home/saneisjus# ping -I ath0 yahoo.com
PING yahoo.com (216.109.112.135) from 192.168.0.100 ath0: 56(84) bytes of data.
From 192.168.0.100 icmp_seq=1 Destination Host Unreachable
From 192.168.0.100 icmp_seq=2 Destination Host Unreachable
From 192.168.0.100 icmp_seq=3 Destination Host Unreachable

--- yahoo.com ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4056ms
, pipe 3
lostboys:/home/saneisjus#

extra info:
toshiba satellite M45 s165
Debian Linux (sarge)

ifconfig output

lostboys:/home/saneisjus# ifconfig
ath0      Link encap:Ethernet  HWaddr 00:11:F5:5D:0E:47
          inet addr:192.168.0.100  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::211:f5ff:fe5d:e47/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:52 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:7788 (7.6 KiB)  TX bytes:1670 (1.6 KiB)

eth0      Link encap:Ethernet  HWaddr 00:A0:D1:20:17:B7
          inet addr:192.168.0.101  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::2a0:d1ff:fe20:17b7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8518 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8345 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4655684 (4.4 MiB)  TX bytes:1646051 (1.5 MiB)
          Interrupt:201 Base address:0xa000

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:116 errors:0 dropped:0 overruns:0 frame:0
          TX packets:116 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:7860 (7.6 KiB)  TX bytes:7860 (7.6 KiB)

wifi0     Link encap:UNSPEC  HWaddr 00-11-F5-5D-0E-47-00-00-00-00-00-00-00-00-00-00
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:33873 errors:0 dropped:0 overruns:0 frame:11708
          TX packets:319 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:199
          RX bytes:2978279 (2.8 MiB)  TX bytes:16492 (16.1 KiB)
          Interrupt:193 Memory:dc968000-dc978000

dmesg output (really long, so I'ma just put what I think pertains)

lostboys:/home/saneisjus# dmesg | grep wifi
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 7.8 phy 4.5 radio 5.6
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0xc0200000, irq=193
lostboys:/home/saneisjus# dmesg | grep ath0
ath0: no IPv6 routers present

[kakariko81280]

You seem to be picking up an IP address OK. From your post:

lostboys:/home/saneisjus# dhclient ath0
...
bound to 192.168.0.100 -- renewal in 432000 seconds.
...
lostboys:/home/saneisjus# ifconfig
ath0 Link encap:Ethernet HWaddr 00:11:F5:5D:0E:47
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0

Your DNS settings seem to be OK too because when you ping yahoo the DNS lookup seems to work too, so your problem seems to be elsewhere.

Can I get you to post the output of:

ping 192.168.0.1
route
wget http://www.yahoo.com

Chris...

[saneisjustaword]

lostboys:/home/saneisjus# ping -I ath0 192.168.0.1
PING 192.168.0.1 (192.168.0.1) from 192.168.0.100 ath0: 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=1.01 ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=0.954 ms
64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=2.19 ms
64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=0.940 ms

--- 192.168.0.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.940/1.276/2.194/0.530 ms
lostboys:/home/saneisjus# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth0
192.168.0.0     *               255.255.255.0   U     0      0        0 ath0
default         192.168.0.1     0.0.0.0         UG    0      0        0 eth0

I couldn't find in the man page an argument to specify the interface for wget, if you know one I can get that output for you.

[kakariko81280]

ah hah!

You've still got eth0 up. The default gateway is being directed through eth0 and (I'm guessing) you've unplugged the cable or something to make sure it's using the wireless network.

ifconfig eth0 down
route add default gw 192.168.0.1

Let us know how you get on.

Chris...

[saneisjustaword]

Kickin'! Thanks that did the trick!