[ 4084.179819][T28671] gre: GRE over IPv4 demultiplexer driver
[ 4085.866156][T28694] ip_gre: GRE over IPv4 tunneling driver
[ 4113.941948][T29041] ping (29041) used greatest stack depth: 23168 bytes left
[ 4134.637451][T29267] ip6_gre: GRE over IPv6 tunneling driver
[ 4169.886458][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4174.749387][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4178.909361][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4183.837389][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!