[ 3221.535879][T18730] gre: GRE over IPv4 demultiplexer driver
[ 3228.051678][T18753] ip_gre: GRE over IPv4 tunneling driver
[ 3353.521510][T19327] ip6_gre: GRE over IPv6 tunneling driver
[ 3373.335882][T19576] ping (19576) used greatest stack depth: 23008 bytes left
[ 3377.156893][ T7532] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3385.983546][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3390.720509][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3394.751536][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3399.552511][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!