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@gmail.com Signed-off-by: Andrea Mayer andrea.mayer@uniroma2.it Tested-by: Hangbin Liu liuhangbin@gmail.com
.../testing/selftests/net/srv6_end_dt4_l3vpn_test.sh | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
Reviewed-by: David Ahern dsahern@kernel.org