IPv6 woes - RFC

Mon Sep 13 21:52:12 UTC 2021

On Mon, Sep 13, 2021 at 8:22 PM Randy Bush <randy at psg.com> wrote:

> real compatibility with ipv4 was disdained.  the transition plan was
> dual stack and v4 would go away in a handful of years.  the 93
> transition mechanisms were desperate add-ons when v4 did not go away.
> and dual stack does not scale, as it requires v4 space proportional to
> deployed v6 space.
>

What I find most peculiar about this whole rant (not just yours but the
whole thread) is that I may be the only one who found implementing IPv6
with dual stack completely trivial and a non issue? There is no scale issue
nor any of the other rubbish.

Some say what we have is not a true dual stack setup because we run MPLS
and the IPv6 mostly lives inside L2VPN or L3VPN tunnels. Most of our
network gear has no idea what an IPv6 address is. But neither does that
equipment touch the public IPv4 internet. Nevertheless we configure our
IPv4 and IPv6 both only on our few edge Juniper MX devices and that is it.
I do not believe IPv6 has 100 config lines in my network total.

For all I care we already have a perfect working system with IPv4+CGN+IPv6.
The CGN part was the most troublesome, not the IPv6.

Regards,

Baldur
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