Nicola-H
asked on
Interpreting output from ifconfig & iwconfig
Hi
Being new to Linux (Suse 10.1) I'm having some problems interpreting the output from ifconfig and iwconfig. There's something stopping my wireless network from functioning correctly but I can't spot what it is. Is there something in the following output that doesn't look right? Or is there another query I can run which might tell me why my connection isn't working?
Output from 'ifconfig -a':
eth0 Link encap:Ethernet HWaddr 00:02:3F:82:34:EB
UP 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:185 Base address:0xe800
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:104 errors:0 dropped:0 overruns:0 frame:0
TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7522 (7.3 Kb) TX bytes:7522 (7.3 Kb)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 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)
wlan0 Link encap:Ethernet HWaddr 00:12:17:41:79:50
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:332 (332.0 b) TX bytes:90 (90.0 b)
Interrupt:177 Memory:36000000-36002000
Output from 'iwconfig':
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11g ESSID:"linksys"
Mode:Managed Frequency:2.462 GHz Access Point: 00:06:25:2C:68:3B
Bit Rate:11 Mb/s Tx-Power:14 dBm
RTS thr:2347 B Fragment thr:2346 B
Encryption key:off
Power Management:off
Link Quality:100/100 Signal level:-53 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
sit0 no wireless extensions.
Being new to Linux (Suse 10.1) I'm having some problems interpreting the output from ifconfig and iwconfig. There's something stopping my wireless network from functioning correctly but I can't spot what it is. Is there something in the following output that doesn't look right? Or is there another query I can run which might tell me why my connection isn't working?
Output from 'ifconfig -a':
eth0 Link encap:Ethernet HWaddr 00:02:3F:82:34:EB
UP 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:185 Base address:0xe800
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:104 errors:0 dropped:0 overruns:0 frame:0
TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7522 (7.3 Kb) TX bytes:7522 (7.3 Kb)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 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)
wlan0 Link encap:Ethernet HWaddr 00:12:17:41:79:50
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:332 (332.0 b) TX bytes:90 (90.0 b)
Interrupt:177 Memory:36000000-36002000
Output from 'iwconfig':
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11g ESSID:"linksys"
Mode:Managed Frequency:2.462 GHz Access Point: 00:06:25:2C:68:3B
Bit Rate:11 Mb/s Tx-Power:14 dBm
RTS thr:2347 B Fragment thr:2346 B
Encryption key:off
Power Management:off
Link Quality:100/100 Signal level:-53 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
sit0 no wireless extensions.
ASKER
No probs - I'm sure you're very busy being a technical genius and I appreciate any help at all :-)
I'll post the output for those commands in a couple of hours when I have access to the lappy.
I'll post the output for those commands in a couple of hours when I have access to the lappy.
I'll be off anyway for a couple of hours, so no problem.
To me the only thing missing in there is an ip address associated with wlan0
Have you tried :
dhclient wlan0
?
Have you tried :
dhclient wlan0
?
ASKER
iwlist wlan0 scanoutputs this:
wlan0 Scan completed :
Cell 01 - Address: 00:06:25:1A:9E:D4
ESSID:"linksys"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:0/100 Signal level:-63 dBm Noise level:-256 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Extra:bcn_int=100
Extra:atim=0
wconfig wlan0 essid ESSID doesn't do anything obvious, and iwlist wlan0 scan again outputs this:
wlan0 Scan completed :
Cell 01 - Address: 00:06:25:1A:9E:D4
ESSID:"linksys"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:0/100 Signal level:-65 dBm Noise level:-256 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Extra:bcn_int=100
Extra:atim=0
dhclient wlan0 outputs this:
Listening on LPF/wlan0/00:12:17:41:79:5
Sending on LPF/wlan0/00:12:17:41:79:5
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPOFFER from 192.168.1.1
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPACK from 192.168.1.1
bound to 192.168.1.101 -- renewal in 1440 seconds.
The router is set to assign IP addresses on connection.
I can still see linksys in the connection list, but it just tries to connect for a while and then fails when I select it.
wlan0 Scan completed :
Cell 01 - Address: 00:06:25:1A:9E:D4
ESSID:"linksys"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:0/100 Signal level:-63 dBm Noise level:-256 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Extra:bcn_int=100
Extra:atim=0
wconfig wlan0 essid ESSID doesn't do anything obvious, and iwlist wlan0 scan again outputs this:
wlan0 Scan completed :
Cell 01 - Address: 00:06:25:1A:9E:D4
ESSID:"linksys"
Protocol:IEEE 802.11b
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:0/100 Signal level:-65 dBm Noise level:-256 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Extra:bcn_int=100
Extra:atim=0
dhclient wlan0 outputs this:
Listening on LPF/wlan0/00:12:17:41:79:5
Sending on LPF/wlan0/00:12:17:41:79:5
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPOFFER from 192.168.1.1
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPACK from 192.168.1.1
bound to 192.168.1.101 -- renewal in 1440 seconds.
The router is set to assign IP addresses on connection.
I can still see linksys in the connection list, but it just tries to connect for a while and then fails when I select it.
ASKER CERTIFIED SOLUTION
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ASKER
'Route' gives me this lot:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
loopback * 255.0.0.0 U 0 0 0 lo
I can't ping 66.249.85.104 - I just get 'network is unreachable'.
If I plug the lappy in with an ethernet cable it connects straight away. There's no firewall active on the laptop and all security settings on the router have been turned off. I know the card works cos I've tested it in another machine. I get the feeling I'm missing something obvious but I'm so unfamiliar with the OS that I can't see it.
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
loopback * 255.0.0.0 U 0 0 0 lo
I can't ping 66.249.85.104 - I just get 'network is unreachable'.
If I plug the lappy in with an ethernet cable it connects straight away. There's no firewall active on the laptop and all security settings on the router have been turned off. I know the card works cos I've tested it in another machine. I get the feeling I'm missing something obvious but I'm so unfamiliar with the OS that I can't see it.
Is the Access Point your DHCP server? If so you must make sure it is correctly setup to pass the correct values to your PC. If you aren't using an internal LAN you need to connect to, the AP should have a subnet mask like 255.255.255.0 set, the DNS servers of your ISP should be set too. If your using an internal LAN we may need to have more info about that, and then ideally the AP shouldn't be the DHCP server, but a server on your LAN.
ASKER
The access point is a wireless/wired Linksys ADSL router. It seems to be set up correctly - I have 2 wireless networked machines (a Mac and a PC) which are currently connecting via the router with no problem, and another wired one which works fine. The problem seems to be at the laptop end of things unless there are router settings that work with Mac/Win but not Linux?
SOLUTION
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ASKER
After a great deal of struggling I decided to give up on ndiswrapper, downloaded DriverLoader, tried one last time to connect to the internet before I started installing it, and it worked. I have no idea how it got from not working to working without my doing anything, but I'm sure it was something you guys got me to do.
Thanks for all your help :-)
Thanks for all your help :-)
iwlist wlan0 scan
iwconfig wlan0 essid ESSID
iwlist wlan0 scan