[ 3170.687304][T22579] gre: GRE over IPv4 demultiplexor driver
[ 3172.863787][T22603] ip_gre: GRE over IPv4 tunneling driver
[ 3233.429229][T23175] ip6_gre: GRE over IPv6 tunneling driver
[ 3269.900811][T23519] ping (23519) used greatest stack depth: 22672 bytes left
[ 3275.897588][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3281.785467][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3286.650463][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3292.666487][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!