[ 3556.569841][T17702] gre: GRE over IPv4 demultiplexor driver
[ 3558.610733][T17726] ip_gre: GRE over IPv4 tunneling driver
[ 3621.620146][T18299] ip6_gre: GRE over IPv6 tunneling driver
[ 3660.947947][T18642] ping (18642) used greatest stack depth: 23360 bytes left
[ 3667.135603][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3673.023496][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3678.015512][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3684.095533][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!