[j-nsp] /31 subnet mask

[David Ball]

http://tools.ietf.org/html/rfc3021


On 22/03/2008, Christian Koch <christian at visr.org> wrote:
> /31 is useless/unuseable
>
>  /31 = 255.255.255.254 - 2 addresses network address and broadcas, there is
>  no room for host addresses
>
>
>
>
>  On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <cscosunny at gmail.com> wrote:
>
>  > hello can any one explain the use of a /31 subnet mask i know its for
>  > saving ip addresses etc etc but i need to know how it works,limitations
>  > and how to implement it.
>  > thank you
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