[ 1513.794388][  T880] gre: GRE over IPv4 demultiplexer driver
[ 1514.249467][  T903] ip_gre: GRE over IPv4 tunneling driver
[ 1529.794490][ T1474] ip6_gre: GRE over IPv6 tunneling driver
[ 1537.214415][ T1824] ping (1824) used greatest stack depth: 23360 bytes left
[ 1540.089174][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.072151][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1543.864150][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1545.912163][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!