* [PATCH net-next] selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRF
@ 2018-07-10 12:44 Petr Machata
2018-07-12 6:59 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Petr Machata @ 2018-07-10 12:44 UTC (permalink / raw)
To: netdev, linux-kselftest; +Cc: davem, shuah, idosch
The mirrored packets arrive at $h3 encapsulated in GRE/IPv4, with IP
address from 192.0.2.128/28 network. However the interface is configured
as a member of 192.0.2.160/28 and there's no route directing traffic
from the former network through that interface. Correspondingly, the RP
filter on the VRF rejects it.
Therefore turn off the VRF's RP filter.
Signed-off-by: Petr Machata <petrm@mellanox.com>
---
tools/testing/selftests/net/forwarding/mirror_gre_nh.sh | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
index 8fa681eb90e7..6f9ef1820e93 100755
--- a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
@@ -35,6 +35,8 @@ setup_prepare()
vrf_prepare
mirror_gre_topo_create
+ sysctl_set net.ipv4.conf.v$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
--
2.4.11
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next] selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRF
2018-07-10 12:44 [PATCH net-next] selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRF Petr Machata
@ 2018-07-12 6:59 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2018-07-12 6:59 UTC (permalink / raw)
To: petrm; +Cc: netdev, linux-kselftest, shuah, idosch
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.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-07-10 12:44 [PATCH net-next] selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRF Petr Machata
2018-07-12 6:59 ` David Miller
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