[  727.955767] gre: GRE over IPv4 demultiplexor driver
[  728.147337] ip_gre: GRE over IPv4 tunneling driver
[  731.162765] ip (3668) used greatest stack depth: 12136 bytes left
[  738.040631] ip6_gre: GRE over IPv6 tunneling driver
[  744.125891] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  745.597870] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  747.005897] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  748.414860] ip6_tunnel: tep0 xmit: Local address not yet configured!