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

  • From: hc
  • Date: Thu Jan 16 23:08:02 2003 
Because syn cookies are available on routing gear??? Either way syn
cookies are not going to keep the device from sending a 'syn-ack' to the
'originating host'.
True.. At least it will have some stop in the amount of attacks.

It is quite unfortunate that it is impossible to control the 'ingress' point of attack flow. Whenever there is a DoS attack, the only way to drop it is to null route it (the method you have devised) over BGP peering, but that knocks the victim host off the 'net... :-(

-hc