From: Greg Wendel (gwendel@gmail.com)
Date: Tue Jul 31 2007 - 21:50:29 ART
The only problem we have found is that some DNS / IP Management systems
don't support /31 networks so we just combine multiple /31's into /30's for
record keeping. Other than that /31's work great.
Greg
On 7/31/07, Toh Soon, Lim <tohsoon28@gmail.com> wrote:
>
> Hi All,
>
> If the question is phrased as follows:
>
>
> --------------------------------------------------------------------------------
> Configure the Serial link between R7 and R8 with PPP encapsulation and
> place
> on the 150.50.102.0 subnet.
> This configuration should support only R7 and R8 as viable hosts on this
> subnet.
>
>
> --------------------------------------------------------------------------------
>
> Should I configure the link as /30 or /31? If I go with 31-bit prefix, the
> IP addresses would be 150.50.102.0/31 and 150.50.102.1/31.
>
> By the way, are 31-bit prefixes commonly used in the real-world to address
> point-to-point links? I have learned of its advantages e.g. conserving IP
> addresses, elimination of directed broadcast address, etc. Are there any
> disadvantages?
>
>
> Thank you.
>
> B.Rgds,
> Lim TS
>
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-- Gregory Wendel Springfield VA, 22153
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