[ 1585.571610][T14695] gre: GRE over IPv4 demultiplexer driver
[ 1585.996939][T14718] ip_gre: GRE over IPv4 tunneling driver
[ 1601.497920][T15289] ip6_gre: GRE over IPv6 tunneling driver
[ 1606.841431][T15538] ping (15538) used greatest stack depth: 23320 bytes left
[ 1611.644580][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1613.627551][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1615.419548][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1617.403556][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!