Re: Can Anyone Explain the over-all view of Wireless Networking?
Matt Zagrabelny wrote:
> On Tue, 2010-02-02 at 16:00 -0600, Kent West wrote:
>
>
>> So, how do I associate an Access Point?
>>
>
> Associate to a wireless network:
>
> sudo iwconfig wlan0 essid UMD-Wireless
>
> Associate to a AP, I wouldn't do this step:
>
> sudo iwconfig wlan0 ap mac-address-of-ap-radio
>
> sudo ifup wlan0
>
>
westk@evoljasen:~$ sudo iwconfig wlan0 ap any
westk@evoljasen:~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"ACUWireless"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
westk@evoljasen:~$ sudo /etc/init.d/networking restart
Running /etc/init.d/networking restart is deprecated because it may not
enable again some interfaces ... (warning).
Reconfiguring network interfaces...There is already a pid file
/var/run/dhclient.eth1.pid with pid 2126
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth1/00:0d:56:2c:5e:d6
Sending on LPF/eth1/00:0d:56:2c:5e:d6
Sending on Socket/fallback
DHCPRELEASE on eth1 to 150.252.128.107 port 67
There is already a pid file /var/run/dhclient.wlan0.pid with pid 2219
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/00:18:f8:29:b5:96
Sending on LPF/wlan0/00:18:f8:29:b5:96
Sending on Socket/fallback
DHCPRELEASE on wlan0 to 192.168.1.1 port 67
send_packet: Network is unreachable
send_packet: please consult README file regarding broadcast address.
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth1/00:0d:56:2c:5e:d6
Sending on LPF/eth1/00:0d:56:2c:5e:d6
Sending on Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
receive_packet failed on eth1: Network is down
receive_packet failed on eth1: Network is down
receive_packet failed on eth1: Network is down
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 14
DHCPOFFER from 150.252.8.1
DHCPREQUEST on eth1 to 255.255.255.255 port 67
DHCPACK from 150.252.8.1
bound to 150.252.12.59 -- renewal in 82914 seconds.
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/00:18:f8:29:b5:96
Sending on LPF/wlan0/00:18:f8:29:b5:96
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 20
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
done.
westk@evoljasen:~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"ACUWireless"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
westk@evoljasen:~$ sudo iwconfig wlan0 ap any
westk@evoljasen:~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"ACUWireless"
Mode:Managed Frequency:2.457 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
westk@evoljasen:~$ sudo iwconfig wlan0 essid ACUWireless
westk@evoljasen:~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"ACUWireless"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
--
Kent West <*)))><
http://kentwest.blogspot.com
Praise Yah! \o/
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