[ 4004.075078][T24622] gre: GRE over IPv4 demultiplexor driver
[ 4006.222502][T24646] ip_gre: GRE over IPv4 tunneling driver
[ 4013.576694][T24711] ping (24711) used greatest stack depth: 23832 bytes left
[ 4067.431870][T25219] ip6_gre: GRE over IPv6 tunneling driver
[ 4095.026660][T25468] ping (25468) used greatest stack depth: 23360 bytes left
[ 4111.091986][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4117.107893][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4122.227885][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4128.307894][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!