On 16 Feb. 2017 8:14 pm, "Randy Bush" <randy@xxxxxxx> wrote:
> "something useful" makes it subjective.some of us try to operate networks. useful is what customers pay us to
do.
slaac is real, used, and is useful in some environments that customers
> SLAAC, NPT66, ILNP are the biggest one that I can think of.
want.
One of the benefits of a /64 is that IIDs within it can be sparsely distributed, making device discovery by unsolicited inbound address probing ineffective.
I think a router having these sorts of sparse IIDs in its addresses would be a useful mitigation against router control plane attacks, such as a syn attack on port 179 from the Internet.
Regards,
Mark.
64 for slaac is fine.
> Trivial to make SLAAC work with variable length prefixes of course.
for the rest, we went to cidr over a decade back, when folk scammed mo
out of 8+8.
randy
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