[  729.381797] gre: GRE over IPv4 demultiplexor driver
[  729.596626] ip_gre: GRE over IPv4 tunneling driver
[  739.279154] ip6_gre: GRE over IPv6 tunneling driver
[  740.710499] ip (4594) used greatest stack depth: 12176 bytes left
[  745.596640] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  747.132637] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  748.540655] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  750.076619] ip6_tunnel: tep0 xmit: Local address not yet configured!