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Date:      Wed, 8 Mar 2000 09:35:30 -0600
From:      Dan Nelson <dnelson@emsphone.com>
To:        Kasper <kasper@swebase.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Block out PING.
Message-ID:  <20000308093530.B12549@dan.emsphone.com>
In-Reply-To: <001701bf88f2$79ff4960$2b4b4bd4@swebase.com>; from "Kasper" on Wed Mar  8 12:35:59 GMT 2000
References:  <001701bf88f2$79ff4960$2b4b4bd4@swebase.com>

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In the last episode (Mar 08), Kasper said:
> Is there any way to stop the machine to answer on ping, so that my
> machine doenst answer on any ping? My server has been ping attacked a
> few times.

This won't help you, as the problem with pingfloods is usually the sent
packets, not your responses.  By the time the ping requests have
reached your machine, your connection is probably already maxed out.

            T?                        Modem
Attacker(s) --- ( Internet cloud )  -------- You

1000 pps    ->                1000 pps  ->  20 pps   -.
                                                      )
  20 pps    <-   20 pps                 <-  20 pps  <-'




-- 
	Dan Nelson
	dnelson@emsphone.com


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