[ 1759.906029][ T3930] gre: GRE over IPv4 demultiplexer driver
[ 1760.371743][ T3954] ip_gre: GRE over IPv4 tunneling driver
[ 1777.231374][ T4543] ip6_gre: GRE over IPv6 tunneling driver
[ 1785.445720][ T4887] ping (4887) used greatest stack depth: 23320 bytes left
[ 1788.355986][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1790.468898][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1792.451899][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1794.564899][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!