[ 3073.500854][T17206] gre: GRE over IPv4 demultiplexor driver
[ 3075.647525][T17229] ip_gre: GRE over IPv4 tunneling driver
[ 3137.005636][T17800] ip6_gre: GRE over IPv6 tunneling driver
[ 3168.072128][T18093] ping (18093) used greatest stack depth: 22816 bytes left
[ 3179.318368][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3185.206305][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3190.199301][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3196.022313][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3284.101490][T19182] ping (19182) used greatest stack depth: 22624 bytes left