Hi,
On Thu, Dec 06, 2018 at 01:14:54PM +1300, Brian E Carpenter wrote:
> > Which implies that as soon as the evil guys out there find a way to
> > generate DDoS streams carrying EHs that our border routers will (have to)
> > apply very strict rate limiting to everything they do not understand.
> >
> > - pass TCP
> > - rate-limit UDP on well-known reflective attacks port
> > - pass rest of UDP
> > - rate-limit ICMP
> > - rate-limit fragments
> > - rate-limit all the rest to something which can never exceed a customer's
> > access-link
> >
> > game over, EH
>
> Just to point out that this is equivalent to saying "game over,
> any new layer 4 protocol" too. For example, you just killed SCTP.
> And the same goes for new protocols over IPv4.
Well. Since nobody is using SCTP, it can nicely live in the
"rate-limit all the rest to something ..." bucket...
But yes, "any new layer 4 protocol" is likely to not work in an Internet
that is basically full of hostile packets *in high volumes*.
Trying to run large volume traffic over UDP/443 is going to be the next
excercise in "operators told you that is isn't going to work"...
Gert Doering
-- NetMaster
--
have you enabled IPv6 on something today...?
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