It's Ars Tech's turn to bang the IPv4 exhaustion drum

Alain Durand alain_durand at
Tue Aug 19 13:30:38 CDT 2008

On 8/19/08 1:50 PM, "sthaug at" <sthaug at> wrote:

>> In practice, many routers require the packet to go twice in the hardware if
>> the prefix length is > 64 bits, so even though it is a total waste of space,
>> it is not stupid to use /64 for point-to-point links and even for loopbacks!
> Could you provide some documentation on this? First I've heard about it.

Ask your favorite router vendor. This has been confirmed to me by at least 3
major one we use.

 - Alain.

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