[  481.543158][ T1914] gre: GRE over IPv4 demultiplexor driver
[  483.659420][ T1937] ip_gre: GRE over IPv4 tunneling driver
[  491.460775][ T2001] ping (2001) used greatest stack depth: 23328 bytes left
[  545.174963][ T2510] ip6_gre: GRE over IPv6 tunneling driver
[  588.092799][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  594.173768][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  599.229709][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  605.308728][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!