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Re: IPv4 v IPv6



The size of such a routing table gives me nightmares ! Thank goodness you have to advertise networks of a reasonably sized prefix length!

On Mon, 17 Jun 2019 at 16:07, Dan Ritter <dsr@randomstring.org> wrote:
John Hasler wrote:
> Gene Heskett wrote:
> > But that opens yet another container of worms. If I arbitrarily assign
> > ipv6 local addresses, and later, ipv6 shows up at my side of the router,
> > what if I have an address clash with someone on a satellite circuit in
> > Ulan Bator.  How is that resolved, by unroutable address blocks such as
> > 192.168.xx.xx is now?
>
> In addition to the points made by others, the IPv6 address space is so
> large that were you to assign a random IPv6 address to every computer in
> existence (including all the embedded systems) the probability of a
> collision would be negligible.

... but only if you were really being random. Humans are
terrible at doing that unaided.

-dsr-


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