[ 3347.299046][T28735] gre: GRE over IPv4 demultiplexor driver
[ 3348.429544][T28759] ip_gre: GRE over IPv4 tunneling driver
[ 3383.864224][T29333] ip6_gre: GRE over IPv6 tunneling driver
[ 3398.169862][T29582] ping (29582) used greatest stack depth: 23360 bytes left
[ 3407.625374][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3411.400298][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3414.665313][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3418.504302][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3468.716864][T30713] ping (30713) used greatest stack depth: 22400 bytes left