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[rpd] IPv4 Soft Landing BIS

Owen DeLong owen at
Fri Jul 28 19:07:20 UTC 2017

>> Yes and their uselessness will depend on the enviroment in which they
>> are used.
> Agreed. So neither an argument for your preference, nor for mine.
> Overall I think that at some point the usefulness of v4 addresses will
> from some later date decline [only 4 billion other IPs reachable from
> any v4 IP]; just like currently the usefulness of v6 addresses
> increases. [Network effect]

Technically, this is more like 3.2 Billion because there are nearly 1 Billion
held up in RFC-1918,, Multicast, Class E/F/G, etc.

So it’s actually even less useful than if there were 4.3 billion (2^32)
reachable addresses.

>>> The last IPv4 address ought to be handled with care hence further
>>> recommendation on how to deal with this depletion scenario.
>>    Ok, i can give you one. One IPv4 address, take good care of it.
>>    ;-)
>> Ack



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