[ 4767.920354][T24712] gre: GRE over IPv4 demultiplexor driver
[ 4770.146725][T24735] ip_gre: GRE over IPv4 tunneling driver
[ 4837.170792][T25308] ip6_gre: GRE over IPv6 tunneling driver
[ 4873.942464][T25557] ping (25557) used greatest stack depth: 23600 bytes left
[ 4903.995835][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4910.459532][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4917.307530][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4943.134366][T26074] ping (26074) used greatest stack depth: 23312 bytes left
[ 5142.891174][T27778] ping (27778) used greatest stack depth: 22608 bytes left