[ 3073.383152][T17228] gre: GRE over IPv4 demultiplexor driver
[ 3075.672664][T17251] ip_gre: GRE over IPv4 tunneling driver
[ 3137.709796][T17823] ip6_gre: GRE over IPv6 tunneling driver
[ 3173.811249][T18173] ping (18173) used greatest stack depth: 23632 bytes left
[ 3179.693566][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3185.645469][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3190.638453][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3196.525467][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!