cannot connect to wireless network

anartz · 10-20-2004, 09:03 AM

Hi all,

Problem: I cannot connect to the network!!

Description: I am running SUSE 9.1 on my Compaq armada M700 with a Xterasys XN2422G network card. I managed to configure the card using the windows drivers and Ndiswrapper. I can see that the card is active and is powered (lights flashing).

This is the information that I managed to get about the card and the routers around me.

# modprobe ndiswrapper
# iwconfig wlan0 essid 'Strathclyde'
# iwconfig
lo no wireless extensions.

sit0 no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:"Strathclyde"
Mode:Managed Frequency:2.412GHz Access Point: 00:60:1D:1E

4:95
Bit Rate:11Mb/s Tx-Power:10 dBm Sensitivity=0/3
RTS thr:4096 B Fragment thr:4096 B
Encryption key

ff
Power Management

ff
Link Quality:100/100 Signal level:-51 dBm Noise level:-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

# iwlist wlan0 scan
wlan0 Scan completed :
Cell 01 - Address: 00:60:1D:1E

3:FF
ESSID:"Strathclyde"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.412GHz
Quality:0/100 Signal level:-57 dBm Noise level:-256 dBm
Encryption key: XXX
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s

Cell 02 - Address: 00:0F:3D:F7

A:2F
ESSID:"ICC"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.437GHz
Quality:0/100 Signal level:-79 dBm Noise level:-256 dBm
Encryption key: XXX
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:6Mb/s
Bit Rate:9Mb/s
Bit Rate:12Mb/s
Bit Rate:18Mb/s
Bit Rate:52Mb/s
Cell 03 - Address: 00:60:1D:1E

4:95
ESSID:"Strathclyde"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.442GHz
Quality:0/100 Signal level:-50 dBm Noise level:-256 dBm
Encryption key: XXX
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Cell 04 - Address: 00:60:1D:1E

5

6
ESSID:"Strathclyde"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.412GHz
Quality:0/100 Signal level:-81 dBm Noise level:-256 dBm
Encryption key:XXX
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s

It looks to me (in my ignorance) as if the signal is too low to connect to any of the cells. However, I can connect to the network via cell03 from the same place if I use the same hardware running Win2000.

Can anyone give me a hand please??

Very much appreciated.

Anartz

secesh · 10-20-2004, 09:21 AM

[edit]

darkleaf · 10-20-2004, 11:05 AM

It's working great. It has associated to the MAC address that's listed in your iwconfig.

Now you need to have a dhcp program to set the rest of the parameters or set them manually.

anartz · 10-20-2004, 11:35 AM

Thanks for your prompt reply! I have tried setting the network parameters using Yast2 but with not success. Could you tell me how I could follow up with this?

Many thanks!

anartz

darkleaf · 10-20-2004, 11:53 AM

Do you have dhcpcd?

Code:

dhcpcd wlan0

That should set stuff like your IP address. Then you're on the local network. You can test this by pinging to the router:

Code:

ping x.x.x.x

the x.x.x.x is your router's IP address. Use CTRL-C to stop the pinging.
Then there a probably are a few things you still have to set for internet.

anartz · 10-20-2004, 01:23 PM

I tried as you said and there were no messages or nothing, but I still cannot ping anything. I tried solution on this thread but still couldn't make it work

any more suggestions would be very welcome.

thanks very much!

anartz

darkleaf · 10-20-2004, 01:43 PM

Couldn't you ping the router? Then the dhcpcd didn't work.

You could try setting everything manual:

Code:

iwconfig wlan0 essid ****
ifconfig wlan0 x.x.x.x
route add default gw 0.0.0.0

x.x.x.x is your ipaddress you can choose any number from 0 to 255 for the last x provided there aren't any other computers on the network already. If so you should use a high number so it isn't already given away.
The x.x.x.x is your router's IP address.

You can check if the settings are ok with:

Code:

ifconfig wlan0

After that you should be able to ping to your router. If you still can't can you post the results of iwcofig wlan0, ifconfig wlan0 and route?

anartz · 10-26-2004, 09:08 AM

here I come again :)

I tried to do what you said and still couldn't manage to solve the problem... here are the results that I got from the trial:

Code:

# modprobe ndiswrapper 
# ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 00:E0:98:BD:5C:D4  
          inet addr:10.2.21.150  Bcast:10.2.23.255  Mask:255.255.252.0
          inet6 addr: fe80::2e0:98ff:febd:5cd4/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5273 (5.1 Kb)  TX bytes:1282 (1.2 Kb)
          Interrupt:11 Memory:10420000-10421fff 
# iwconfig wlan0
wlan0     IEEE 802.11g  ESSID:"Strathclyde"  Nickname:"anartz"
          Mode:Managed  Frequency:2.412GHz  Access Point: 00:60:1D:1E:D3:FF  
          Bit Rate=11Mb/s   Tx-Power:10 dBm   Sensitivity=0/3  
          RTS thr=4096 B   Fragment thr=4096 B   
          Encryption key:off
          Power Management:off
          Link Quality:100/100  Signal level:-46 dBm  Noise level:-256 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

and had to stop it ^C

Then I changed the addresses to those that I get when I connect using windows and this is what I get:

Code:

# ifconfig wlan0 10.2.21.150 broadcast 10.2.20.100 netmask 255.255.252.0
# ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 00:E0:98:BD:5C:D4  
          inet addr:10.2.21.150  Bcast:10.2.20.100  Mask:255.255.252.0
          inet6 addr: fe80::2e0:98ff:febd:5cd4/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:716 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:115186 (112.4 Kb)  TX bytes:3144 (3.0 Kb)
          Interrupt:11 Memory:10420000-10421fff 

# iwconfig wlan0
wlan0     IEEE 802.11g  ESSID:"Strathclyde"  Nickname:"anartz"
          Mode:Managed  Frequency:2.412GHz  Access Point: 00:60:1D:1E:D3:FF  
          Bit Rate=11Mb/s   Tx-Power:10 dBm   Sensitivity=0/3  
          RTS thr=4096 B   Fragment thr=4096 B   
          Encryption key:off
          Power Management:off
          Link Quality:100/100  Signal level:-46 dBm  Noise level:-256 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.2.20.0       *               255.255.252.0   U     0      0        0 wlan0
loopback        *               255.0.0.0       U     0      0        0 lo

It looks like it is somethhing better, but still cannot make it work :(

any ideas please?? they'll be very welcome!!

anartz

darkleaf · 10-26-2004, 10:01 AM

Your gateway is set to your loopback device. Can you access the internet or ping to the router if you set the gateway (your router's IP address) with:

Code:

route add default gw x.x.x.x

anartz · 10-27-2004, 08:33 AM

is it changed now? I cannot ping anywhere, and still can't connect to the network, but it looks like mozilla is trying to connect to my homepage

Code:

# ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 00:E0:98:BD:5C:D4  
          inet addr:10.2.21.150  Bcast:10.2.23.255  Mask:255.255.252.0
          inet6 addr: fe80::2e0:98ff:febd:5cd4/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:396 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:40609 (39.6 Kb)  TX bytes:4363 (4.2 Kb)
          Interrupt:11 Memory:10420000-10421fff 

# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.2.20.0       *               255.255.252.0   U     0      0        0 wlan0
loopback        *               255.0.0.0       U     0      0        0 lo
default         10.2.20.100     0.0.0.0         UG    0      0        0 wlan0

# ping 10.2.20.100
PING 10.2.20.100 (10.2.20.100) 56(84) bytes of data.

--- 10.2.20.100 ping statistics ---
12 packets transmitted, 0 received, 100% packet loss, time 10998ms

thanks for your help!

anartz

darkleaf · 10-27-2004, 09:38 AM

I don't think it should list your loopback device in that list (it doesn't for me) Is that netmask you have there ok? On LANs it's often 255.255.255.0
Otherwise I wouldn't know how to get that the lo interface gone there.

You can set the netmask with:

Code:

ifconfig wlan0 netmask x.x.x.x

anartz · 10-27-2004, 10:11 AM

That is the netmask that I get when I do

Code:

 dhcpcd wlan0

It's also the same net mask that I get when connected from windows.

How could I remove lo from the route?

anartz

darkleaf · 10-27-2004, 10:21 AM

Quote:

Originally posted by anartz
That is the netmask that I get when I do

Code:

dhcpcd wlan0

It's also the same net mask that I get when connected from windows.

Then it's Ok

Quote:

How could I remove lo from the route?

That's what I don't know but I think it solves your problem.

anartz · 10-27-2004, 10:38 AM

Thanks for your help!

it is so sad to be so close to fixing it and not being able to

hopefully someone out ther can give me a hand.

Cheers

anartz