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I have set router IP to and starting IP address to But when I run ifconfig command it shows the following IPs:

inet addr: Bcast Mask:

in Network manager in IPv4 Settings, Method is set to Automatic (DHCP)

Why they're not in defined range?

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up vote 3 down vote accepted

Because someone else has another DHCP server on the network that responded first.

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Can you explain more? I have only a windows computer(connected with cable) and a Linux system in my network – Nick.h Oct 6 '11 at 17:21
There isn't anything to explain. Somehow there is a second DHCP server on your network. – Ignacio Vazquez-Abrams Oct 6 '11 at 17:26
I'm sure that I'm connected to my own access point.Is there anything else to check? – Nick.h Oct 6 '11 at 17:47
Check what machine is at the default gateway in your routing. – Ignacio Vazquez-Abrams Oct 6 '11 at 17:49

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