[  721.094919] gre: GRE over IPv4 demultiplexor driver
[  721.237384] ip_gre: GRE over IPv4 tunneling driver
[  730.049811] ip6_gre: GRE over IPv6 tunneling driver
[  730.804602] ip (8221) used greatest stack depth: 12176 bytes left
[  735.422494] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  736.830478] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  738.110487] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  739.454478] ip6_tunnel: tep0 xmit: Local address not yet configured!