Biggest mistake for IPv6: It's not backwards compatible, developers admit

[Martin List-Petersen]

S.P.Zeidler wrote:
> I don't see that following, at least not with a sane PI assignment policy.
> PI space being available does not mean that there would be no more PA at all.


Which means spacing, so that if an increase is needed, the prefix is
increased, but not a second one allocated.


> What I -do- see following is that an entity can be/have an autonomous system
> without being an ISP (and without needing a /32), many of them being
> autonomous systems already in v4, and not willing to give up their routing
> independence to add v6.


I agree entirely here.


> Also, most ASs would only announce one prefix instead of the zoo most
> keep today.

And on this one two. We'll have one prefix per AS (more or less). That
will be less prefixes than are announced today for the current
autonomous systems.

The only problem is, that we're also allocating 4-byte ASN's now which
gives potential for a bigger routing table than the one we have.
On the other side, that's just progression for you and would have
happened anyhow, IPv6 or not.

Slán,
Martin List-Petersen
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