[  720.742889] gre: GRE over IPv4 demultiplexor driver
[  720.897037] ip_gre: GRE over IPv4 tunneling driver
[  730.313883] ip6_gre: GRE over IPv6 tunneling driver
[  736.511830] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  737.919835] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  739.263833] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  739.874239] ip (3410) used greatest stack depth: 12216 bytes left
[  740.736807] ip6_tunnel: tep0 xmit: Local address not yet configured!