[ 4677.680403][T24605] gre: GRE over IPv4 demultiplexor driver
[ 4679.835597][T24629] ip_gre: GRE over IPv4 tunneling driver
[ 4708.928998][T24881] ping (24881) used greatest stack depth: 23904 bytes left
[ 4745.900401][T25201] ip6_gre: GRE over IPv6 tunneling driver
[ 4775.755492][T25451] ping (25451) used greatest stack depth: 23600 bytes left
[ 4792.573332][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4798.973256][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4804.284257][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4810.684293][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!