nanog mailing list archives

Re: NDP DoS attack


From: Florian Weimer <fw () deneb enyo de>
Date: Sun, 17 Jul 2011 13:04:39 +0200

* Mikael Abrahamsson:

On Sun, 17 Jul 2011, Florian Weimer wrote:

Interesting, thnaks.  It's not the vendors I would expect, and it's
not based on SEND (which is not surprising at all and actually a
good thing).

Personally I think SEND is never going to get any traction.

Last time, I was told that SEND was the way to go, despite not
actually fixing anything.  This mess is even worse than SCTP.

Is this actually secure in the sense that it ties addresses to
specific ports for both sending and receiving?  I'm asking because
folks have built similar systems for IPv4 which weren't.  The CLI
screenshots look good, better than what most folks achieve with
IPv4.

As far as I know, it's designed to work securely in an ETTH scenario,
which implies both sending and receiving (if I understood you
correctly).

And it would also plug the NDP DOS vector because you've got a small
set of addresses you need to process.  Let's hope this gets buy-in
from more vendors (and across the whole switch product lines, please),
with full interoperability.

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