[ 1528.320067][T18197] gre: GRE over IPv4 demultiplexer driver
[ 1528.833147][T18220] ip_gre: GRE over IPv4 tunneling driver
[ 1535.179273][T18516] ping (18516) used greatest stack depth: 23888 bytes left
[ 1544.602605][T18791] ip6_gre: GRE over IPv6 tunneling driver
[ 1550.193816][T19040] ping (19040) used greatest stack depth: 23712 bytes left
[ 1555.074086][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1557.057048][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1558.914043][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1560.961049][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1562.471591][T19447] ip (19447) used greatest stack depth: 23480 bytes left