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

Owen DeLong owen at delong.com
Thu Mar 1 22:28:21 UTC 2018

> On Mar 1, 2018, at 1:20 PM, Harald Koch <chk at pobox.com> wrote:
> On 1 March 2018 at 15:18, Owen DeLong <owen at delong.com <mailto:owen at delong.com>> wrote:
> Second, RFC-1918 doesn’t apply to IPv6 at all, and (fortunately) hardly anyone
> uses ULA (the IPv6 analogue to RFC-1918).
> Wait. What's the objection to ULA? Is it just that NAT is bad, or is there something new?

No particular objection, but I don’t see the point.

What can you do with ULA that GUA isn’t suitable for?


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