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IPv6 Unique Local Addresses (was Re: New Active Exploit: memcached on port 11211 UDP & TCP being exploited for reflection attacks)

> On Mar 1, 2018, at 6:30 PM, Harald Koch <chk at pobox.com> wrote:
> On 1 March 2018 at 18:48, Mark Andrews <marka at isc.org> wrote:
>> ULA provide stable internal addresses which survive changing ISP
>> for the average home user.
> Yeah this is pretty much what I'm doing. ULA for stable, internal addresses
> that I can put into the (internal) DNS: ISP prefixes for global routing.
> Renumbering is hard.
> All of the objections I've seen to ULA are actually objections to (IPv6)
> NAT, which is why I was confused.

I object to NAT more strongly than ULA, but IMHO, even if you arenâ??t going to route it, a block of GUA PI makes more sense than ULA for virtually any installation I can imagine.