[ 1058.800840][T15719] gre: GRE over IPv4 demultiplexer driver
[ 1059.329498][T15742] ip_gre: GRE over IPv4 tunneling driver
[ 1075.711774][T16313] ip6_gre: GRE over IPv6 tunneling driver
[ 1081.447278][T16569] ping (16569) used greatest stack depth: 23168 bytes left
[ 1086.443913][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1088.490884][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1090.347865][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1092.394889][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!