[ 1480.059970][  T756] gre: GRE over IPv4 demultiplexer driver
[ 1480.482036][  T779] ip_gre: GRE over IPv4 tunneling driver
[ 1495.779342][ T1351] ip6_gre: GRE over IPv6 tunneling driver
[ 1498.219753][  T468] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1503.013816][ T1694] ping (1694) used greatest stack depth: 23344 bytes left
[ 1505.852671][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1507.835689][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1509.692680][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1511.676733][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!