[net-next] selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRF
diff mbox

Message ID a1d9001969381681ce4c3891ef8404b74aef177f.1531226547.git.petrm@mellanox.com
State New
Headers show

Commit Message

Petr Machata July 10, 2018, 12:44 p.m. UTC
The mirrored packets arrive at $h3 encapsulated in GRE/IPv4, with IP
address from 192.0.2.128/28 network. However the interface is configured
as a member of 192.0.2.160/28 and there's no route directing traffic
from the former network through that interface. Correspondingly, the RP
filter on the VRF rejects it.

Therefore turn off the VRF's RP filter.

Signed-off-by: Petr Machata <petrm@mellanox.com>
---
 tools/testing/selftests/net/forwarding/mirror_gre_nh.sh | 4 ++++
 1 file changed, 4 insertions(+)

Comments

David Miller July 12, 2018, 6:59 a.m. UTC | #1
From: Petr Machata <petrm@mellanox.com>
Date: Tue, 10 Jul 2018 14:44:26 +0200

> The mirrored packets arrive at $h3 encapsulated in GRE/IPv4, with IP
> address from 192.0.2.128/28 network. However the interface is configured
> as a member of 192.0.2.160/28 and there's no route directing traffic
> from the former network through that interface. Correspondingly, the RP
> filter on the VRF rejects it.
> 
> Therefore turn off the VRF's RP filter.
> 
> Signed-off-by: Petr Machata <petrm@mellanox.com>

Applied.
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Patch
diff mbox

diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
index 8fa681eb90e7..6f9ef1820e93 100755
--- a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
@@ -35,6 +35,8 @@  setup_prepare()
 	vrf_prepare
 	mirror_gre_topo_create
 
+	sysctl_set net.ipv4.conf.v$h3.rp_filter 0
+
 	ip address add dev $swp3 192.0.2.161/28
 	ip address add dev $h3 192.0.2.162/28
 	ip address add dev gt4 192.0.2.129/32
@@ -61,6 +63,8 @@  cleanup()
 	ip address del dev $h3 192.0.2.162/28
 	ip address del dev $swp3 192.0.2.161/28
 
+	sysctl_restore net.ipv4.conf.v$h3.rp_filter 0
+
 	mirror_gre_topo_destroy
 	vrf_cleanup