[ 3367.877246][T31374] gre: GRE over IPv4 demultiplexor driver
[ 3369.019537][T31398] ip_gre: GRE over IPv4 tunneling driver
[ 3403.207162][T31971] ip6_gre: GRE over IPv6 tunneling driver
[ 3422.658599][T32314] ping (32314) used greatest stack depth: 21584 bytes left
[ 3426.790464][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3430.437412][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3433.637420][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3437.285414][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!