[ 1472.912745][  T779] gre: GRE over IPv4 demultiplexer driver
[ 1473.346764][  T803] ip_gre: GRE over IPv4 tunneling driver
[ 1488.909137][ T1381] ip6_gre: GRE over IPv6 tunneling driver
[ 1494.305582][ T1630] ping (1630) used greatest stack depth: 23344 bytes left
[ 1499.152483][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1501.136436][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1502.993424][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1504.977437][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!