[ 4271.610999][T19642] gre: GRE over IPv4 demultiplexor driver
[ 4273.307443][T19665] ip_gre: GRE over IPv4 tunneling driver
[ 4321.907524][T20238] ip6_gre: GRE over IPv6 tunneling driver
[ 4327.661024][T20303] ping (20303) used greatest stack depth: 23600 bytes left
[ 4342.702941][T20491] ping (20491) used greatest stack depth: 23440 bytes left
[ 4355.427544][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4360.291448][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4364.451450][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4369.315473][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!