[  813.573907] gre: GRE over IPv4 demultiplexor driver
[  813.748859] ip_gre: GRE over IPv4 tunneling driver
[  820.231105] ip (7153) used greatest stack depth: 12048 bytes left
[  823.292642] ip6_gre: GRE over IPv6 tunneling driver
[  829.498681] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  830.970678] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  832.378676] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  833.786636] ip6_tunnel: tep0 xmit: Local address not yet configured!