[ 1505.610125][T16701] gre: GRE over IPv4 demultiplexer driver
[ 1506.016738][T16724] ip_gre: GRE over IPv4 tunneling driver
[ 1511.248390][T16976] ping (16976) used greatest stack depth: 23560 bytes left
[ 1521.181260][T17295] ip6_gre: GRE over IPv6 tunneling driver
[ 1531.093626][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1533.012604][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1534.805593][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1536.789599][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!