Wireless in 9.10

Nigel Ridley nigel at prayingforisrael.net
Sun Dec 6 18:41:24 GMT 2009

Reinhold Rumberger wrote:
> On Sunday 06 December 2009, Nigel Ridley wrote:
>> Reinhold Rumberger wrote:
>>> I haven't been able to use NM since I need more than one network
>>> interface to be active at a time (i.e. both ethernet and
>>> wireless). Since I've always used /etc/network/interfaces, this
>>> has never really bothered me...
>> Could you give a working example of your /etc/network/interfaces?
>> We have ethernet and two wireless routers, both DHCP auto and
>>  'unprotected'/open.
> Sure:
> <sample>
> auto lo
> iface lo inet loopback
> address
> netmask
> iface eth0 inet dhcp
> iface wlan0 inet dhcp
> wireless-essid infvpn
> pre-up iwconfig wlan0 rate 54M
> auto wlan0
> </sample>
> The "lo" interface is obviously the loopback device. "eth0" is an 
> ethernet (wired) interface. "wlan0" is the wireless interface. The 
> pre-up statement makes sure that the wireless interface is in its 
> highest supported speed mode and may be omitted. "infvpn" is the 
> name/(E)SSID of the wireless network. If your routers both have the 
> same SSID, just replace "infvpn" with your SSID and you should be 
> fine.
> This configuration will not activate the eth0 interface since I don't 
> need it in that environment.
> Don't forget to restart NM and networking after altering your 
> /etc/network/interfaces (preferably by running "stop network-manager; 
> /etc/init.d/networking restart; start network-manager" as root).
> See "man interfaces" for further info.
>>> The Idea behind NM also has the problem that one needs to log in
>>> before a network connection can be established (unless something
>>> drastically changed). This is a problem on my Desktop, which I
>>> tend to start and afterwards use/manage remotely...
>> This is a pain in the proverbial -- I have a couple of widgets
>>  that require internet access and 'time out' because
>>  KNetWorkManager takes a while to actually connect. OTOH, Wicd
>>  would connect before log in -- much better!
> IMHO, in a fixed setting (e.g. Desktop), /etc/network/interfaces 
> works best.
>   --Reinhold

That looks straight forward. Do I just 'sudo apt-get remove KnetworkManager', set up my 
/etc/network/interfaces and 'sudo /etc/init.d/networking restart' ?


More information about the kubuntu-users mailing list