RE: FN-FORUM: TCP/IP Properties

date posted 1st February 2007 10:11



> -----Original Message-----
> From: [EMAIL REMOVED] [EMAIL REMOVED] On Behalf Of Dai
> Williams
> Sent: 01 February 2007 09:14
> To: FN-FORUM / [EMAIL REMOVED]
> Subject: RE: FN-FORUM: TCP/IP Properties
>
>
> [EMAIL REMOVED] wrote:
> > Hi All,
> >
> > I have tried to change the DNS servers in the 'Internet
> > Protocol (TCP/IP Properties' dialog box, however receive the
> > error message 'The combination of IP address and subnet mask
> > in invalid. All of the bits in the host address portion of
> > the ip address are set to 1. Please enter a valid combination
> > of IP address and subnet mask'.
> >
> > My default (pre-configured) settings are:
> >
> > IP Address: 212.227.xx.xx
> > Subnet Mask: 255.255.255.255
> > Gateway: 10.255.255.1
> >
> > I've googled for a solution but can find anything. This seems to be
> > the most relevant: http://www.pcreview.co.uk/forums/thread-215168.php
> > . I don't understand what's wrong with the settings.
> >
> > My server is running Windows 2003 web edition.
> >
> > Thanks, Dominic
>
> Dominic,
>
> Subnet mask of 255.255.255.255 means you are on a network with one
> solitary
> IP address, namely the one you yourself are using. The most exact subnet
> you can ever want is 255.255.255.254 and even that only allows for one
> other
> address. Most common subnets are 255.255.255.0 which means any address
> with
> same first three octets is on your network or 255.255.0.0 which means any
> address with same first two octets is on your network.
>
> If you want a more exact explanation of subnets I am sure you can google
> it
> up, but I am pretty sure that is where the problem lies, despite the error
> message seeming to indicate otherwise.
>
> HTH,
>
> Dai

Hi Dai,

Thanks for your help.

The machine is a dedicated server with 1&1 which started behaving oddly a
couple of days ago. Support have looked at the machine now and turned DHCP
on but all the settings have remained the same including the subnet mask
(using ipconfig /all)!? It appears I have a machine doing the impossible!

Cheers, Dom