[ 1366.142966][  T739] gre: GRE over IPv4 demultiplexer driver
[ 1366.634478][  T762] ip_gre: GRE over IPv4 tunneling driver
[ 1382.586158][ T1334] ip6_gre: GRE over IPv6 tunneling driver
[ 1386.991288][ T1533] ping (1533) used greatest stack depth: 23664 bytes left
[ 1392.961786][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1395.010748][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1396.865753][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1398.849759][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1419.999900][ T2714] ping (2714) used greatest stack depth: 23504 bytes left