[ 4013.545095][T24602] gre: GRE over IPv4 demultiplexor driver
[ 4015.602074][T24626] ip_gre: GRE over IPv4 tunneling driver
[ 4078.588506][T25200] ip6_gre: GRE over IPv6 tunneling driver
[ 4085.781793][T25261] ping (25261) used greatest stack depth: 23376 bytes left
[ 4120.274547][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4126.099472][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4131.155458][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4136.978463][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!