North American Network Operators Group

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Re: More smurf fun

  • From: Jeffrey Haas
  • Date: Mon Mar 09 16:05:48 1998

Dave Rand was known to have said:
> Here's the latest group of smurf-able networks.
> Some of the phone calls were interesting.  Many of the NOC staff did not
> know what a smurf attack was (so I explained it to them).  Many did not want
> to set no ip directed-broadcast because they didn't know what it would do.

A quick note:

If you find yourself having problems from this netblock, please contact
either [email protected] (me) or [email protected]

We currently cannot disable directed broadcast due to a NASTY bug
in the packet forwarding code of the Proteon routers we use on our
backbone.  We are working with Proteon to solve this issue.

(I'm also trying to figure out if the issue is worth posting to Bugtraq.)

In the meanwhile, we have implemented blackhole routing for the subnets
that seemed to be at issue.

> Dave Rand

 Jeffrey Haas   "He that breaks a thing to find out what it is has
[email protected]  left the paths of wisdom." (Or works for Fermilab...)