[ 1459.341464][T11136] gre: GRE over IPv4 demultiplexer driver
[ 1459.776166][T11159] ip_gre: GRE over IPv4 tunneling driver
[ 1475.320447][T11734] ip6_gre: GRE over IPv6 tunneling driver
[ 1477.808415][  T523] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1482.646981][T12077] ping (12077) used greatest stack depth: 22688 bytes left
[ 1485.527831][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1487.511837][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1489.302844][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1491.287848][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!