netdev - Blackhole route not enough for proxy-arp

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Message-ID: <CAEvAWuFLexokRTSAmO70XR5S_qW3yyjmnxRo3uKi_6R2r1Lirg@mail.gmail.com>
Date:	Fri, 17 Jul 2015 12:33:08 +0200
From:	Jörg Pommnitz <jpo234@...scape.net>
To:	netdev@...r.kernel.org
Subject: Blackhole route not enough for proxy-arp

Hello all,
it seems that a blackhole route is not enough to enable proxy arp for
the routing target.
I tried
ip route add blackhole 192.168.66.3/32
and
ip route add 192.168.66.3/32 dev lo

arping failed with the blackhole route but got responses with the
route through the loopback interface.
Is this behaviour a bug or a feature?

-- Regards
Joerg
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