Hi everyone, I already posted this in NXP forum as a comment (https://community.nxp.com/thread/359397), in yocto mailing list (https://lists.yoctoproject.org/pipermail/yocto/2018-December/043664.html) and in meta-freescale mailing list (https://lists.yoctoproject.org/pipermail/meta-freescale/2018-December/023625.html) A user in meta-freescale's mailing list suggested to resend this message to the emails obtained running "./scripts/get_maintainer.pl -F drivers/net/ethernet/freescale/fec_main.c".
The problem is: If I boot my iMX6 device with ethernet cable attached and I execute "ping6 ff02::fb" to ping the multicast address I get this response: ~# ping6 ff02::fb PING ff02::fb (ff02::fb): 56 data bytes 64 bytes from fe80::c2f:eff:fe11:2d71: seq=0 ttl=64 time=2.057 ms 64 bytes from fe80::809:1bfb:8d4c:ae54: seq=0 ttl=64 time=73.101 ms (DUP!) 64 bytes from fe80::3e28:6dff:feed:5b97: seq=0 ttl=64 time=150.772 ms (DUP!) Otherwise, If I unplug and plug again ethernet cable, I cannot ping the multicast ipv6 address anymore. The result is: ~# ping6 ff02::fb PING ff02::fb (ff02::fb): 56 data bytes ping6: sendto: Network is unreachable The original NXP discussion was about older version of Linux, however this issue is happening with both Linux 4.9.88 and Linux 4.17. Probably also with the latest version, but I didn't try. Do you have any suggestions? Is this a bug? This is really a frustrating and I'm really surprised to see the same problem also on Linux 4.17. PS: I'm sorry for the double email, but the previous one was in html and it was rejected. Thank u.