[ 3997.426595][T24685] gre: GRE over IPv4 demultiplexor driver
[ 3999.475546][T24709] ip_gre: GRE over IPv4 tunneling driver
[ 4060.219455][T25283] ip6_gre: GRE over IPv6 tunneling driver
[ 4081.497891][T25489] ping (25489) used greatest stack depth: 23488 bytes left
[ 4096.002397][T25633] ping (25633) used greatest stack depth: 23360 bytes left
[ 4102.295997][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4108.438848][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4113.686883][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4119.894835][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!