[ 1548.916344][T17730] gre: GRE over IPv4 demultiplexer driver
[ 1549.458062][T17760] ip_gre: GRE over IPv4 tunneling driver
[ 1565.279910][T18331] ip6_gre: GRE over IPv6 tunneling driver
[ 1572.791287][T18674] ping (18674) used greatest stack depth: 23072 bytes left
[ 1575.644583][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1577.628559][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1579.484559][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1581.468562][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!