"Rod" <rodrig***@gmail.com> wrote in message
news:1172865254.340682.52380@30g2000cwc.googlegroups.com...
>I am using a router to assign static IP addresses to specific MAC
> addresses (PC's and VOIP phones) as a security measure.  Physical
> security of the equipment is not very reliable in our office building.
>
> Some of the PC's latched onto their assigned I.P. addresses, but two
> did not.  The router logged them as "spoofing" from inside the LAN.
>
> When I enter an "ipconfig /all" on the two offenders, they report an
> "Autoconfiguration IP Address".  I do not know how/why this occurs.
>
> I went into the network properties and manually entered the IP values
> (192.168.0.x).  It is as though the router cannot authenticate them,
> unless I key in the matching IP address.  The other PC's do not need
> this; the MAC address entered in the router is enough.
>
> All of the machines are Windows XP.  Is there a setting somewhere that
> I have not found?
>
> I want to minimize the hassle for mobile users that will need to
> connect to more than one network.
>
> rsquared
>

> Hi
> If your are referring to an Entry Level Router.
> Assigning Static IP (in a Router that allows it) means that the same
> computer with the same MAC address would be always assigned with the same
> IP, it does not change the actual TCP/IP settings in the computer.
> If the address is assigned by the Router is Static, or Dynamic, the
> Computer's settings still remain on Auto Obtain.
> If you actually assign a static IP in the computer's TCP/IP menus, you do
> not have to do any thing in the Router.
> However, The address has to be an address out of the DHCP server of the
> Router.
> I.e. if the DHCP is set to assign 50 IP from 192.168.x.1, the static IP in
> the computer should be above 192.168.x.50.
> Jack (MVP-Networking).
>
> "Rod" <rodrig***@gmail.com> wrote in message
>
> news:1172865254.340682.52380@30g2000cwc.googlegroups.com...
>
>
>
> >I am using a router to assign static IP addresses to specific MAC
> > addresses (PC's and VOIP phones) as a security measure.  Physical
> > security of the equipment is not very reliable in our office building.
>
> > Some of the PC's latched onto their assigned I.P. addresses, but two
> > did not.  The router logged them as "spoofing" from inside the LAN.
>
> > When I enter an "ipconfig /all" on the two offenders, they report an
> > "Autoconfiguration IP Address".  I do not know how/why this occurs.
>
> > I went into the network properties and manually entered the IP values
> > (192.168.0.x).  It is as though the router cannot authenticate them,
> > unless I key in the matching IP address.  The other PC's do not need
> > this; the MAC address entered in the router is enough.
>
> > All of the machines are Windows XP.  Is there a setting somewhere that
> > I have not found?
>
> > I want to minimize the hassle for mobile users that will need to
> > connect to more than one network.
>
> > rsquared- Hide quoted text -
>
> - Show quoted text -