mask 255.255.255.255 in Windows problems

I'm trying to add a 2nd IP address with a mask of 32 bits (255.255.255.255)
to an existing Windows 2003 Server but I'm not having much luck. So what I
want is this:

A traditional IP/Mask as the primary interface IP and a secondary IP as a
/32. When I try to add the /32 Windows complains as follows:

"The combination of IP address and subnet mask is 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."

This sort of thing is done all the time for routers (loopback addresses) and
can easily be done on unix (either as a primary interface such as an eth0 or
as a virtual interface such as eth0:1). So can I do that in Windows?

Thanks!

Hello Carlos,

You can't, for what reason will you add a second ip with no access option?

Best regards

Meinolf Weber (Myweb)
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.

> I'm trying to add a 2nd IP address with a mask of 32 bits
> (255.255.255.255) to an existing Windows 2003 Server but I'm not
> having much luck. So what I want is this:
>
> A traditional IP/Mask as the primary interface IP and a secondary IP
> as a /32. When I try to add the /32 Windows complains as follows:
>
> "The combination of IP address and subnet mask is 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."
>
> This sort of thing is done all the time for routers (loopback
> addresses) and can easily be done on unix (either as a primary
> interface such as an eth0 or as a virtual interface such as eth0:1).
> So can I do that in Windows?
>
> Thanks!
>

In news:%(E-Mail Removed),
Carlos <(E-Mail Removed)> typed:
> I'm trying to add a 2nd IP address with a mask of 32 bits
> (255.255.255.255) to an existing Windows 2003 Server but I'm not
> having much luck. So what I want is this:
>
> A traditional IP/Mask as the primary interface IP and a secondary IP
> as a /32. When I try to add the /32 Windows complains as follows:
>
> "The combination of IP address and subnet mask is 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."
>
> This sort of thing is done all the time for routers (loopback
> addresses) and can easily be done on unix (either as a primary
> interface such as an eth0 or as a virtual interface such as eth0:1).
> So can I do that in Windows?
> Thanks!

That's not how it works under Windows. Windows uses the traditional sense of
what the mask means, that a /24 with 8 bits to the hosts mask says to the
system this guy is one of 254 possible hosts that live on it's block.

--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer

Infinite Diversities in Infinite Combinations

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