Chancing IPs

Aart Koelewijn aart at
Wed Nov 4 12:47:44 UTC 2009

On Wed, 04 Nov 2009 12:50:57 +0100, Artur Frydel wrote:

> On Wed, 4 Nov 2009, Aart Koelewijn wrote:
>> Hello list,
>> in my network I have an old laptop with Ubuntu 8.04 running 24/7 for a
>> measurement project. This laptop has a WiFi connection with my router.
>> Normally it will get an IP from the DHCP range off the router,
>> This is always the same IP. But every so often, perhaps
>> after a week or two weeks it will change its IP to and it
> Maybe it's a problem with dhcp lease? Can't you set manual ip
> addressing?

It seems unlikely it has something to do with a dhcp lease when it will 
function well for such a long time. At the moment all my wired 
connections have a manual ip, all wireless use dhcp, but I can try to 
change that for this laptop.
>> router will accept is a web-128 protection the wifi connection is
>> unprotected. The router will only check if the mac-address is one of
>> the allowed mac-addresses.
> WEP protectiong is nothing. Any n00b can crack this by a piece of
> software. In a couple of minutes.
> Use WPA, or make sure, that your network will be hacked (earlier or
> later).

I know, but at the moment the laptop can't do anything but WEP 64, I 
would have to get a new USB-WiFi dongle to be able to use WPA, and there 
seem to be a lot of those dongles that don't work with Linux. At the 
moment I monitor the connection dayly, it has been up unprotected for 
almost a year and no one has tried to break in yet.


More information about the ubuntu-users mailing list