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From: Julian Anastasov <ja@ssi.bg>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] A small correction to LARTC (fwd)
Date: Thu, 16 Jan 2003 21:52:09 +0000	[thread overview]
Message-ID: <marc-lartc-104275390330363@msgid-missing> (raw)
In-Reply-To: <marc-lartc-104272305013372@msgid-missing>


	Hello,

On Thu, 16 Jan 2003, Dragan Simic wrote:

> I had 2.4.x in mind when I wrote this about rp_filter values. In any case,
> in the LARTC should be cleared out what applies to 2.2 branch, and what to
> 2.4 branch. It's true, in 2.2.23, there are three options (0,1,2); and
> there are two options (0,1) in 2.4.20.

	This is wrong, all kernels (2.2, 2.4, 2.5) treat 2 as 1,
i.e. only 1 and 0 are enough to distinguish the two possible states:
enable/disable source address validation. As for all/rp_filter, it
is only a flag that says "0 disables the spoofing check for all
interfaces". include/linux/inetdevice.h is a good source for
information about whether 0 or 1 as value for all/XXX changes
globally the feature for all interfaces. For rp_filter it is 0,
for send_redirects it is 1.

Regards

--
Julian Anastasov <ja@ssi.bg>

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http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

      parent reply	other threads:[~2003-01-16 21:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-16 13:26 [LARTC] A small correction to LARTC (fwd) Dragan Simic
2003-01-16 15:53 ` Dragan Simic
2003-01-16 21:52 ` Julian Anastasov [this message]

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