[ 1405.787338][T18871] gre: GRE over IPv4 demultiplexer driver
[ 1406.426114][T18894] ip_gre: GRE over IPv4 tunneling driver
[ 1424.739512][T19466] ip6_gre: GRE over IPv6 tunneling driver
[ 1431.652205][T19715] ping (19715) used greatest stack depth: 22088 bytes left
[ 1431.822010][   T73] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1437.133807][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1439.308873][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1441.229810][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1443.468874][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!