netdev - Re: [PATCH net-next] selftests: forwarding: mirror_gre_vlan_bridge_1q: Unset rp

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Message-Id: <20180626.232546.1490966337335126755.davem@davemloft.net>
Date:   Tue, 26 Jun 2018 23:25:46 +0900 (KST)
From:   David Miller <davem@...emloft.net>
To:     petrm@...lanox.com
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        shuah@...nel.org
Subject: Re: [PATCH net-next] selftests: forwarding:
 mirror_gre_vlan_bridge_1q: Unset rp_filter

From: Petr Machata <petrm@...lanox.com>
Date: Tue, 26 Jun 2018 01:20:32 +0200

> The IP addresses of tunnel endpoint at H3 are set at the VLAN device
> $h3.555. Therefore when test_gretap_untagged_egress() sets vlan 555 to
> egress untagged at $swp3, $h3's rp_filter rejects these packets. The
> test then spuriously fails.
> 
> Therefore turn off net.ipv4.conf.{all, $h3}.rp_filter.
> 
> Fixes: 9c7c8a82442c ("selftests: forwarding: mirror_gre_vlan_bridge_1q: Add more tests")
> Signed-off-by: Petr Machata <petrm@...lanox.com>
> Reviewed-by: Ido Schimmel <idosch@...lanox.com>

Applied.