[ 1542.716439][T26414] gre: GRE over IPv4 demultiplexer driver
[ 1543.216159][T26438] ip_gre: GRE over IPv4 tunneling driver
[ 1551.043808][T26787] ping (26787) used greatest stack depth: 23408 bytes left
[ 1559.491326][T27012] ip6_gre: GRE over IPv6 tunneling driver
[ 1560.040084][T26415] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1565.239928][T27261] ping (27261) used greatest stack depth: 22656 bytes left
[ 1567.495994][T10946] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1570.247950][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.296948][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1574.215967][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1576.328948][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!