Hello, Since i installed rtpengine, I have many messages like "UDP: bad checksum". [383818.303391] UDP: bad checksum. From x.x.x.x:7272 to x.x.x.x:45898 ulen 58 [383819.671083] UDP: bad checksum. From x.x.x.x:7272 to x.x.x.x:45898 ulen 58 [383819.943360] UDP: bad checksum. From x.x.x.x:7272 to x.x.x.x:45898 ulen 58 [383821.516016] UDP: bad checksum. From x.x.x.x:7272 to x.x.x.x:45898 ulen 58 [383821.663985] UDP: bad checksum. From x.x.x.x:7272 to x.x.x.x:45898 ulen 58 Do you have any idea where to start investigating? Env: debian : - jessie - kernel : 3.16.0-4-amd64 - rtpengine : 5.3.0.0+0~mr5.3.0.0 - kamailio : 5.0.1 Regards -- Abdoul OSSENI