[ 3379.583543][T31391] gre: GRE over IPv4 demultiplexor driver
[ 3380.725403][T31415] ip_gre: GRE over IPv4 tunneling driver
[ 3394.625314][T31670] ping (31670) used greatest stack depth: 22592 bytes left
[ 3415.016695][T31994] ip6_gre: GRE over IPv6 tunneling driver
[ 3438.949374][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3442.598275][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3445.797266][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3449.509345][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!