North American Network Operators Group
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Re: Is there a line of defense against Distributed Reflective attacks?

  • From: alex
  • Date: Thu Jan 23 09:54:32 2003 
> Doesn't ECN depend on 'well behaved' traffic? In other words, wouldn't it
> require the hosts sending traffic to slow down? So... even if the hosts
> slowed down, 10,000 hosts still is a high traffic rate at the end point.
> :(

Yes, for ECN to work the sending host must honor the slowdown request/ It
does happen transparently for most types of sockets, however the attacker
can and will disable ECN with a single syscall.

Alex