[  721.258911] gre: GRE over IPv4 demultiplexor driver
[  721.405562] ip_gre: GRE over IPv4 tunneling driver
[  724.254098] ip (7996) used greatest stack depth: 12272 bytes left
[  730.068110] ip6_gre: GRE over IPv6 tunneling driver
[  735.482506] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  736.826520] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  738.106493] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  739.450476] ip6_tunnel: tep0 xmit: Local address not yet configured!