On 12 April 2010 08:11, Walter Dnes <waltd...@waltdnes.org> wrote:
> Here's /etc/conf.d/net on my Gentoo netbook system...
>
> config_eth0="192.168.123.249 broadcast 192.168.123.255 netmask 
> 255.255.255.248 mtu 1452"
> routes_eth0=(
> "default via 192.168.123.254 metric 2"
> "192.168.123.248/29 via 192.168.123.254 metric 0"
> )
>
>  The multiple routes allow eth0 to remain connected to my router and
> talk to the other machine on the lan while running a dialup connection.
> I want to try out my netbook wifi, and I find that it works too well!!!
> Here's the output after starting up wlan0.  The ESSID and MAC address
> of my neighbours in the condo have been masked to protect the innocent...
>
> aa1 init.d # /etc/init.d/net.wlan0 restart
>  * Stopping wlan0
>  *   Bringing down wlan0
>  *     Stopping dhcpcd on wlan0 ...                           [ ok ]
>  *     Shutting down wlan0 ...                                [ ok ]
>  * Starting wlan0
>  *   Configuring wireless network for wlan0
>  *   WEP key is not set for "KGB zone**  keep OFF**" - not connecting
>  *     wlan0 connected to ESSID "***************" at **:**:**:**:**:**
>  *     in managed mode on channel 6 (WEP disabled)
>  *   Configuration not set for wlan0 - assuming DHCP
>  *   Bringing up wlan0
>  *     dhcp
>  *       Running dhcpcd ...
> wlan0: dhcpcd 4.0.15 starting
> wlan0: broadcasting for a lease
> wlan0: offered 192.168.0.103 from 192.168.0.1
> wlan0: ignoring offer of 192.168.0.103 from 192.168.0.1
> wlan0: acknowledged 192.168.0.103 from 192.168.0.1
> wlan0: checking 192.168.0.103 is available on attached networks
> wlan0: leased 192.168.0.103 for 604800 seconds               [ ok ]
>  *       wlan0 received address 192.168.0.103/24
>
>  After picking my jaw off the floor, I downed wlan0.  Just to be safe,
> I ran "rmmod ath5k".  I want to be able to scan available connections
> and then select which one I want, e.g. I want to try it at the local
> public library.  I do not like the concept of the netbook automatically
> connecting to the first available access point.  What do I have to do to
> *NOT* connect automatically?

You probably want to look at wpa_supplicant (in particular man
wpa_gui), or any other network manager type of application would do
(wicd, network manager, wifi-radar) which allows you to enable/disable
access points for automatic connection to them.

Alternatively, a less practical approach would be to set up

config_wlan0=( "null" )

in your /etc/conf.d/net.wlan0, which will not allow your wireless card
to obtain any address.  Or, you can play with dhcpcd options like so:

dhcp_eth0="release nogateway nosendhost" which means that it will not
bind to any wireless router as a gateway.
-- 
Regards,
Mick

Reply via email to