[ 3191.664658][T23671] gre: GRE over IPv4 demultiplexer driver
[ 3193.238267][T23694] ip_gre: GRE over IPv4 tunneling driver
[ 3241.667540][T24266] ip6_gre: GRE over IPv6 tunneling driver
[ 3262.636536][T24515] ping (24515) used greatest stack depth: 23648 bytes left
[ 3275.473362][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3280.402204][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3284.626203][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.553225][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3366.642986][T25748] ping (25748) used greatest stack depth: 23328 bytes left