netdev - RE: Very confused about broute DROP

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Date:	Sat, 17 Sep 2011 20:47:03 -0500
From:	"Greg Scott" <GregScott@...rasupport.com>
To:	"Christian Benvenuti \(benve\)" <benve@...co.com>,
	<netdev@...r.kernel.org>
Cc:	"Graham Parenteau" <adfgrahame1@...il.com>
Subject: RE: Very confused about broute DROP

A clarification - hopefully my embarrassing mistake can be of some use.
ARP is an L2 protocol, not an L3 protocol.  ARP is  **not** part of IPv4
or IPv6.  Look in the IANA list of IP protocol numbers - there's none
for ARP.  ARP is defined in Layer 2, not L3.  I would have missed that
question on a cert test.  That's why my broute rules need to take ARPs
into account.  

- Greg
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