[ 4252.975541][T29307] gre: GRE over IPv4 demultiplexer driver
[ 4254.635139][T29330] ip_gre: GRE over IPv4 tunneling driver
[ 4302.575763][T29902] ip6_gre: GRE over IPv6 tunneling driver
[ 4331.018427][T30253] ping (30253) used greatest stack depth: 23488 bytes left
[ 4336.130715][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4340.994597][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4345.091600][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4349.826598][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4415.164522][T31240] ping (31240) used greatest stack depth: 23248 bytes left