[ 1547.429961][T17484] gre: GRE over IPv4 demultiplexer driver
[ 1547.937075][T17507] ip_gre: GRE over IPv4 tunneling driver
[ 1553.464108][T17759] ping (17759) used greatest stack depth: 23552 bytes left
[ 1563.904039][T18085] ip6_gre: GRE over IPv6 tunneling driver
[ 1568.536981][   T23] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1574.393809][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1576.441807][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1578.296806][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1580.344808][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!