North American Network Operators Group
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Re: [nsp] known networks for broadcast ping attacks

  • From: Craig A. Huegen
  • Date: Wed Jul 30 18:08:31 1997 
On Wed, 30 Jul 1997, Craig A. Huegen wrote:

==>For Ciscos, "no ip directed-broadcast" on your interfaces will
==>prevent remote devices from sending directed broadcasts.  No guarantees
==>about applications it might break, though.

Clarification:  This won't keep you from getting attacked.  However, it
will keep your network from receiving the ECHO and therefore you won't
send ECHO_RESPONSE.

/cah