[ 1660.694774][T14978] gre: GRE over IPv4 demultiplexer driver
[ 1661.120511][T15001] ip_gre: GRE over IPv4 tunneling driver
[ 1666.477351][T15253] ping (15253) used greatest stack depth: 23216 bytes left
[ 1676.544317][T15572] ip6_gre: GRE over IPv6 tunneling driver
[ 1679.039216][T21704] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1684.063198][T21707] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1686.776148][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1688.760149][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1690.551151][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1692.536148][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!