From owner-freebsd-security  Wed Jan 26  2:29: 2 2000
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Date: Wed, 26 Jan 2000 17:29:14 +0700
From: "Alex N. Zhuravlev" <alx@scn.ru>
Organization: SCT
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To: Olaf Hoyer <ohoyer@fbwi.fh-wilhelmshaven.de>,
	freebsd-security@freebsd.org, freebsd-questions@freebsd.org
Subject: MS Win IP assigning 3
References: <4.1.20000126093157.009b07d0@mail.rz.fh-wilhelmshaven.de> <4.1.20000126101440.00c14150@mail.rz.fh-wilhelmshaven.de>
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> >>Hi all !
> >>Please help who knows how ...
> >>The problem is that Win machine with misconfigured IP stack with
> >>"automatic assign IP address" steals my server IP address. Why and how
> >>can this be ?
> >>
> >Thanks all , but I don't have any DHCP server at all ...
> >And no static IP at Win machine.
> >Any ideas ?
> 
> Well, have a look at Start->system->network
> If you look then at the TCP/IP properties, there is also an entry for the
> IP-configuration.
> 
> There should be exactly two entries:
> top entry: Assign IP adress automatically
> bottom entry with two fields to fill out: IP adress and subnet mask
> 
> If you refer to the top entry, that is the entry where Win95 looks for a
> DHCP server, to get an IP from. If there is no DHCP server, then you _have_
> to get an error message, that no IP could be assigned.

Yes, I've got an error message. But address was assinged again !!!!

> To make sure, run the utility winipcfg.exe (in c:\windows), expand the
> display, and then have a look at the field: DHCP server. If there is an
> entry, this will mean that by some accident, wrong subnet routing etc. this
> Win95 box got an IP from somewhere.


It was an broadcast address as DHCP server - 0.0.0.0 

I can assign IP manulay, but someone can do vice-a-verca ...
Any more ideas ?

Alex N. Zhuravlev


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