[ 4314.751667][T29197] gre: GRE over IPv4 demultiplexer driver
[ 4316.566338][T29220] ip_gre: GRE over IPv4 tunneling driver
[ 4367.036964][T29793] ip6_gre: GRE over IPv6 tunneling driver
[ 4400.268325][T30140] ping (30140) used greatest stack depth: 23440 bytes left
[ 4405.515629][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4410.443571][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4414.732575][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4419.660622][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!