[ 3406.905461][T27232] gre: GRE over IPv4 demultiplexor driver
[ 3408.072705][T27255] ip_gre: GRE over IPv4 tunneling driver
[ 3422.689441][T27511] ping (27511) used greatest stack depth: 23856 bytes left
[ 3444.303753][T27831] ip6_gre: GRE over IPv6 tunneling driver
[ 3448.885829][T26252] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3451.446674][T19443] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3459.408369][T28081] ping (28081) used greatest stack depth: 23296 bytes left
[ 3468.853611][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3472.757603][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3476.149600][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3479.861621][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!