[ 1568.696896][T31435] gre: GRE over IPv4 demultiplexer driver
[ 1569.128225][T31458] ip_gre: GRE over IPv4 tunneling driver
[ 1584.695148][T32030] ip6_gre: GRE over IPv6 tunneling driver
[ 1590.125044][T32280] ping (32280) used greatest stack depth: 22240 bytes left
[ 1594.907167][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1596.890122][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1598.746104][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1600.731120][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!