From: Brad Hards <bhards@bigpond.net.au>
To: ebiederm@xmission.com (Eric W. Biederman)
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: lan based kgdb
Date: Mon, 18 Nov 2002 07:25:27 +1100 [thread overview]
Message-ID: <200211180725.27450.bhards@bigpond.net.au> (raw)
In-Reply-To: <m11y5k3ruw.fsf@frodo.biederman.org>
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On Mon, 18 Nov 2002 06:42, Eric W. Biederman wrote:
> As long as the network console/debug interface includes basic a basic
> check to verify that the packets it accepts are from the local network.
This is pretty hard to do in some configurations. You essentially have to do
this at the router, not at destination.
> And it's outgoing packets have a ttl of one. I don't have a problem.
Recent IETF work on link-local has used TTL=255 outgoing, and it has to be 255
at the receive end too. That is a reasonable way to ensure that is is
link-local, since even the most brain-dead routers will at least decrement
TTL.
> Otherwise the concept gives me security nightmares.
Computing should give you security nightmares :)
Brad
- --
http://linux.conf.au. 22-25Jan2003. Perth, Aust. I'm registered. Are you?
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next prev parent reply other threads:[~2002-11-17 20:28 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-15 20:29 Kallol Biswas
2002-11-15 20:38 ` William Lee Irwin III
2002-11-15 22:06 ` Martin J. Bligh
2002-11-15 21:26 ` Linus Torvalds
2002-11-15 21:46 ` Andrew Morton
2002-11-15 22:05 ` Kallol Biswas
2002-11-15 22:24 ` Stelian Pop
2002-11-15 22:47 ` Dmitri
2002-11-15 22:53 ` Stelian Pop
2002-11-17 5:45 ` M. R. Brown
2002-11-15 22:51 ` Andrew Morton
2002-11-15 22:59 ` Stelian Pop
2002-11-16 16:23 ` yodaiken
2002-11-16 17:21 ` Stelian Pop
2002-11-16 21:32 ` Nicholas Miell
2002-11-16 2:35 ` Alan Cox
2002-11-16 18:18 ` Oliver Xymoron
2002-11-16 4:19 ` Linus Torvalds
2002-11-16 7:24 ` David Mosberger-Tang
2002-11-16 17:58 ` Daniel Jacobowitz
2002-11-16 23:56 ` Alan Cox
2002-11-16 18:24 ` Oliver Xymoron
2002-11-16 18:33 ` Linus Torvalds
2002-11-16 19:04 ` Oliver Xymoron
2002-11-17 9:56 ` Jan-Benedict Glaw
2002-11-17 14:50 ` Alan Cox
2002-11-18 7:27 ` Jan-Benedict Glaw
2002-11-19 8:49 ` Amit S. Kale
2002-11-16 20:42 ` Werner Almesberger
2002-11-16 23:54 ` Alan Cox
2002-11-17 3:19 ` Linus Torvalds
2002-11-17 3:30 ` Larry McVoy
2002-11-17 19:42 ` Eric W. Biederman
2002-11-17 20:10 ` Jamie Lokier
2002-11-17 20:31 ` Eric W. Biederman
2002-11-17 20:25 ` Brad Hards [this message]
2002-11-17 21:30 ` Eric W. Biederman
2002-11-17 21:32 ` David Lang
2002-11-17 21:48 ` Brad Hards
2002-11-17 22:00 ` David Lang
2002-11-17 23:48 ` Eric W. Biederman
2002-11-17 21:42 ` Brad Hards
2002-11-18 1:10 ` Werner Almesberger
2002-11-18 7:20 ` Miles Bader
2002-11-15 21:44 Edwin Bland
[not found] <1037490849.24843.11.camel@irongate.swansea.linux.org.uk.suse.lists.linux.kernel>
[not found] ` <20021116193008.C25741@work.bitmover.com.suse.lists.linux.kernel>
[not found] ` <m11y5k3ruw.fsf@frodo.biederman.org.suse.lists.linux.kernel>
[not found] ` <200211180725.27450.bhards@bigpond.net.au.suse.lists.linux.kernel>
[not found] ` <m1smxz3mw7.fsf@frodo.biederman.org.suse.lists.linux.kernel>
2002-11-17 23:52 ` Andi Kleen
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