[ 1496.465255][  T655] gre: GRE over IPv4 demultiplexer driver
[ 1496.913524][  T678] ip_gre: GRE over IPv4 tunneling driver
[ 1512.576756][ T1257] ip6_gre: GRE over IPv6 tunneling driver
[ 1518.018815][ T1506] ping (1506) used greatest stack depth: 23344 bytes left
[ 1522.829770][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1524.813737][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1526.669739][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1528.653751][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!