[ 4318.903754][T28712] gre: GRE over IPv4 demultiplexer driver
[ 4320.617380][T28736] ip_gre: GRE over IPv4 tunneling driver
[ 4372.084884][T29309] ip6_gre: GRE over IPv6 tunneling driver
[ 4401.889947][T18795] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4406.626586][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4411.553605][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4415.905582][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4420.897587][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4494.150813][T30696] ping (30696) used greatest stack depth: 22880 bytes left