[  721.534585] gre: GRE over IPv4 demultiplexor driver
[  721.731297] ip_gre: GRE over IPv4 tunneling driver
[  731.757873] ip6_gre: GRE over IPv6 tunneling driver
[  733.769520] ip (2778) used greatest stack depth: 12072 bytes left
[  737.977791] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  739.449782] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  740.857764] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  742.329754] ip6_tunnel: tep0 xmit: Local address not yet configured!