[ 3941.595849][T19960] gre: GRE over IPv4 demultiplexor driver
[ 3943.590632][T19983] ip_gre: GRE over IPv4 tunneling driver
[ 4008.752293][T20555] ip6_gre: GRE over IPv6 tunneling driver
[ 4035.835899][T20804] ping (20804) used greatest stack depth: 23632 bytes left
[ 4045.857125][T20898] ping (20898) used greatest stack depth: 23360 bytes left
[ 4051.893583][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4057.845516][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4063.094501][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4069.173453][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!