Windows 2003 - setting a secondary IP with netmask /32 (255.255.255.255)

Hi,

I have some servers in different datacenters. Those use standard public
IP's with a standard gateway,...

Now, i've requested a secondary public IP from my ISP, and i've received an
IP with a subnet mask /32, directly routed to the primary address of the
server. It's working on a linux server, but with Windows i cannot define a
subnet mask 255.255.255.255, the smallest i can define is a /30,
255.255.255.252, wich of course does not work as it should (i'm unable to
reach neighboor IP's as the server think those are in the same subnet).

Can someone tell me how i need to configure a Windows 2003 server to handle
a /32 IP ?

I've tryed using the graphic interface (of course), using netsh and manualy
modifying the registry, but no success...

Any help would be appreciated

255.255.255.255 Breaks the rules for subnet masks.

This address would look like 32 1's in binary which is classified as a
broadcast address. All 0's are also broad cast address. You cannot use this
subnet mask. Think the biggest you could have would be /31

Please someone correct me if I'm wrong


"msnews.microsoft.com" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi,
>
> I have some servers in different datacenters. Those use standard public
> IP's with a standard gateway,...
>
> Now, i've requested a secondary public IP from my ISP, and i've received
> an IP with a subnet mask /32, directly routed to the primary address of
> the server. It's working on a linux server, but with Windows i cannot
> define a subnet mask 255.255.255.255, the smallest i can define is a /30,
> 255.255.255.252, wich of course does not work as it should (i'm unable to
> reach neighboor IP's as the server think those are in the same subnet).
>
> Can someone tell me how i need to configure a Windows 2003 server to
> handle a /32 IP ?
>
> I've tryed using the graphic interface (of course), using netsh and
> manualy modifying the registry, but no success...
>
> Any help would be appreciated
>

"David Parkes" <(E-Mail Removed)> a écrit dans le message de news:
%(E-Mail Removed)...
> 255.255.255.255 Breaks the rules for subnet masks.
>
> This address would look like 32 1's in binary which is classified as a
> broadcast address. All 0's are also broad cast address. You cannot use
> this subnet mask. Think the biggest you could have would be /31


Subnet mask /32 are commonly used : ppp connexions, pptp tunelling, DSL,
cable connexion,... it should not break the rules, it's just a single point
IP, directly routed and not broadcasted on a lan.

Thank you for your insight. :-)

I think i could understand how you would use it.

"msnews.microsoft.com" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> "David Parkes" <(E-Mail Removed)> a écrit dans le message de news:
> %(E-Mail Removed)...
>> 255.255.255.255 Breaks the rules for subnet masks.
>>
>> This address would look like 32 1's in binary which is classified as a
>> broadcast address. All 0's are also broad cast address. You cannot use
>> this subnet mask. Think the biggest you could have would be /31
>
>
> Subnet mask /32 are commonly used : ppp connexions, pptp tunelling, DSL,
> cable connexion,... it should not break the rules, it's just a single
> point IP, directly routed and not broadcasted on a lan.
>