North American Network Operators Group

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Floating an idea...

  • From: Karl Denninger
  • Date: Wed Mar 18 01:26:28 1998

Hi folks,

What say all of you to the following idea:

	Block at the entry/peer router level all packets from networks which
	are shown to be "Smurf friendly" - that is, those network numbers
	and/or blocks which are smurf amplifiers (have directed broadcasts
	enabled)?

I was thinking of something similar to the RBL, but that doesn't quite do
it; a pull-down route to a sink doesn't do you any good, since what you're
after is the *source* address.

Now I know this may be entirely impractical for some folks, if for no other
reason than CPU resources in those gateways.

But this kind of thing would certainly send a message to those open
amplifier networks in a big hurry.

Think of it as an "attractive nuisance" problem (and fix).

-
-- 
Karl Denninger ([email protected])| MCSNet - Serving Chicagoland and Wisconsin
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