IP Address Problems

Roger Haxton rhaxton at swbell.net
Mon Jan 9 23:07:52 UTC 2006

On Monday 09 January 2006 05:06, dan wrote:
> According to my ISP, my IP address has been changing every so often,
> for the last few weeks (possibly longer- they've been deleting the
> messages that come up...).
> It is supposedly meant to remain the same (using DHCP), but for some
> reason it has started to alter, and I must admit that looking at the
> IP address now, it does look different.
> However I dont know what I could have done / what has happened to
> cause this. They suggested spyware or a virus, but I am inclined to
> think otherwise.
> As I dont know when this started I cant correlate the change with
> anything that might have happened.
> Is there any reason why I would be assigned different IP addresses?
> Is it possible to restrict which IP address to use? Though from what I
> understand of DHCP etc. (very little...) shouldn't the server do that
> for me?
> Dan
> --
> http://www.danicity.co.uk

I've been seeing similar problems with my laptop connected to my LAN.  My DHCP 
server is set for a 30 day lease time, but, every day I appear to get a 
different IP.  It is almost like the Ubuntu networking doesn't honor the 
lease time set by the DHCP server.  At home, my laptop gets the same IP 
address everytime because I have a reservation set for both my LAN and WLAN 
interfaces.  I used to have a reservation set here at the office, but I 
didn't need it any longer so I removed it from my DHCP server.  I just looked 
at my DHCP server and it is not registering any kind of name in DHCP when it 
receives an IP address.  Very strange.
Original thought is like original sin: both happened before you were born
to people you could not have possibly met.
		-- Fran Lebowitz, "Social Studies"

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