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Message-ID: <ed579a55-c300-b89e-4741-efdc1f3b5ba5@kernel.org> Date: Wed, 10 May 2023 13:56:59 -0600 From: David Ahern <dsahern@...nel.org> To: Andrea Mayer <andrea.mayer@...roma2.it>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, linux-kselftest@...r.kernel.org Cc: Stefano Salsano <stefano.salsano@...roma2.it>, Paolo Lungaroni <paolo.lungaroni@...roma2.it>, Ahmed Abdelsalam <ahabdels.dev@...il.com>, Hangbin Liu <liuhangbin@...il.com> Subject: Re: [net 2/2] selftets: seg6: disable rp_filter by default in srv6_end_dt4_l3vpn_test On 5/10/23 5:16 AM, Andrea Mayer wrote: > On some distributions, the rp_filter is automatically set (=1) by > default on a netdev basis (also on VRFs). > In an SRv6 End.DT4 behavior, decapsulated IPv4 packets are routed using > the table associated with the VRF bound to that tunnel. During lookup > operations, the rp_filter can lead to packet loss when activated on the > VRF. > Therefore, we chose to make this selftest more robust by explicitly > disabling the rp_filter during tests (as it is automatically set by some > Linux distributions). > > Fixes: 2195444e09b4 ("selftests: add selftest for the SRv6 End.DT4 behavior") > Reported-by: Hangbin Liu <liuhangbin@...il.com> > Signed-off-by: Andrea Mayer <andrea.mayer@...roma2.it> > Tested-by: Hangbin Liu <liuhangbin@...il.com> > --- > .../testing/selftests/net/srv6_end_dt4_l3vpn_test.sh | 11 ++++++----- > 1 file changed, 6 insertions(+), 5 deletions(-) > Reviewed-by: David Ahern <dsahern@...nel.org>
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