From: Alex Pennace <alex@pennace.org>
To: George <greerga@entropy.muc.muohio.edu>
Cc: "Albert D. Cahalan" <acahalan@cs.uml.edu>,
"David S. Miller" <davem@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: ECN: Clearing the air (fwd)
Date: Mon, 29 Jan 2001 14:59:50 -0500 [thread overview]
Message-ID: <20010129145950.A6208@buick.pennace.org> (raw)
In-Reply-To: <200101291831.f0TIV7h484162@saturn.cs.uml.edu> <Pine.LNX.4.30.0101291423000.2416-100000@entropy.muc.muohio.edu>
In-Reply-To: <Pine.LNX.4.30.0101291423000.2416-100000@entropy.muc.muohio.edu>; from greerga@entropy.muc.muohio.edu on Mon, Jan 29, 2001 at 02:26:51PM -0500
On Mon, Jan 29, 2001 at 02:26:51PM -0500, George wrote:
> On Mon, 29 Jan 2001, Albert D. Cahalan wrote:
> >The author is expressing his wish for an ideal world. Note that he
> >also accepts reality. He accepts that PMTU black holes won't go
> >away, even though we might like them to do so.
> >
> >Hell, I think I'm behind one. ICMP is/was blocked to/from/within
> >the entire university. This was to stop ping flood attacks. :-)
>
> So you get a UDP flood instead.
>
> Congratulations on breaking something important (PMTU, "Port unreachable",
> etc.) for a false sense of security.
Your praise should be directed to UML telecommunications.
> Did you buy a non-upgraded Cisco PIX just to block ECN as well?
I wouldn't doubt it, but I haven't tested it on this network.
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next prev parent reply other threads:[~2001-01-29 20:00 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-28 0:14 ECN: Clearing the air (fwd) jamal
2001-01-28 8:56 ` James Sutherland
2001-01-28 12:18 ` jamal
2001-01-28 13:29 ` James Sutherland
2001-01-28 14:34 ` Miquel van Smoorenburg
2001-01-28 16:44 ` James Sutherland
2001-01-29 7:32 ` David S. Miller
2001-01-29 12:30 ` Andi Kleen
2001-01-29 18:31 ` Albert D. Cahalan
2001-01-29 19:02 ` James H. Cloos Jr.
2001-01-29 19:27 ` George
2001-01-29 19:59 ` Alex Pennace [this message]
2001-01-28 14:54 ` Andi Kleen
2001-01-28 16:15 ` jamal
2001-01-28 17:11 ` James Sutherland
2001-01-28 18:07 ` jamal
2001-01-28 20:13 ` Gregory Maxwell
2001-01-29 2:58 ` David Lang
2001-01-29 7:20 ` David S. Miller
2001-01-28 19:42 ` Gregory Maxwell
2001-01-29 0:14 ` Jamie Lokier
2001-01-31 18:02 ` Alan Cox
2001-02-03 16:51 ` Michael H. Warfield
2001-01-29 12:57 ` Peter Samuelson
2001-01-28 17:39 ` Rogier Wolff
2001-01-28 18:01 ` Graham Murray
2001-01-28 18:08 ` jamal
2001-01-28 18:23 ` Rogier Wolff
2001-01-28 18:38 ` jamal
2001-01-28 20:18 ` Gregory Maxwell
2001-01-28 21:33 ` ECN fixes for Cisco gear Dax Kelson
2001-01-28 22:09 ` ECN connectivity surveys Dax Kelson
2001-01-28 21:45 ` ECN fixes for Cisco gear Lincoln Dale
2001-01-28 14:04 ` ECN: Clearing the air (fwd) Ben Ford
2001-01-28 14:09 ` James Sutherland
2001-01-28 15:38 ` Ben Ford
2001-01-28 19:55 ` Gregory Maxwell
2001-01-28 19:45 ` Gregory Maxwell
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