[ 1831.109464][T14333] gre: GRE over IPv4 demultiplexer driver
[ 1831.549058][T14356] ip_gre: GRE over IPv4 tunneling driver
[ 1847.138445][T14932] ip6_gre: GRE over IPv6 tunneling driver
[ 1852.478093][T15181] ping (15181) used greatest stack depth: 23320 bytes left
[ 1857.214184][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1859.197156][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1860.989143][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1862.973161][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!