[ 1371.876999][T31894] gre: GRE over IPv4 demultiplexer driver
[ 1372.373622][T31917] ip_gre: GRE over IPv4 tunneling driver
[ 1388.582560][T32496] ip6_gre: GRE over IPv6 tunneling driver
[ 1396.317024][  T371] ping (371) used greatest stack depth: 23072 bytes left
[ 1399.212787][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1401.260751][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1403.115746][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1405.163760][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!