[ 4017.316197][T24592] gre: GRE over IPv4 demultiplexor driver
[ 4019.344784][T24616] ip_gre: GRE over IPv4 tunneling driver
[ 4079.422259][T25189] ip6_gre: GRE over IPv6 tunneling driver
[ 4104.790850][T25438] ping (25438) used greatest stack depth: 23360 bytes left
[ 4120.048489][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4126.256191][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4131.568180][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4137.649230][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4224.306746][T26531] ping (26531) used greatest stack depth: 22992 bytes left