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Date:      Tue, 12 Feb 2013 10:11:42 -0600
From:      Mark Felder <feld@feld.me>
To:        khatfield@socllc.net, Janne Snabb <snabb@epipe.com>
Cc:        freebsd-isp@freebsd.org, freebsd-security@freebsd.org, James Howlett <jim.howlett@outlook.com>
Subject:   Re: FreeBSD DDoS protection
Message-ID:  <op.wsehxssd34t2sn@tech304.office.supranet.net>
In-Reply-To: <51179708.2030206@epipe.com>
References:  <SNT002-W152BF18F12BD59F112A1CBAE5040@phx.gbl> <321927899.767139.1360461430134@89b1b4b66ec741cb85480c78b68b8dce.nuevasync.com> <51179708.2030206@epipe.com>

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On Sun, 10 Feb 2013 06:48:08 -0600, Janne Snabb <snabb@epipe.com> wrote:

> Please do not drop all ICMP unless you understand what you are doing. By
> doing that you are creating a path MTU discovery blackhole.

I was coming here to say the exact thing

Dropping ICMP is not a security method. Please stop doing this!



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