[ 1519.485800][ T2448] gre: GRE over IPv4 demultiplexer driver
[ 1519.963083][ T2471] ip_gre: GRE over IPv4 tunneling driver
[ 1536.784741][ T3045] ip6_gre: GRE over IPv6 tunneling driver
[ 1542.907251][ T3303] ping (3303) used greatest stack depth: 22992 bytes left
[ 1547.997314][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1550.109280][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1552.029300][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1554.141259][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!