[ 1607.404349][ T1523] gre: GRE over IPv4 demultiplexer driver
[ 1607.905222][ T1546] ip_gre: GRE over IPv4 tunneling driver
[ 1624.247093][ T2117] ip6_gre: GRE over IPv6 tunneling driver
[ 1630.066683][ T2367] ping (2367) used greatest stack depth: 22592 bytes left
[ 1632.287370][T31157] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1635.023318][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1637.072302][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1638.927316][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1641.039788][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!