[ 2567.476855][T17626] gre: GRE over IPv4 demultiplexor driver
[ 2569.687988][T17656] ip_gre: GRE over IPv4 tunneling driver
[ 2630.663342][T18235] ip6_gre: GRE over IPv6 tunneling driver
[ 2661.442502][T18528] ping (18528) used greatest stack depth: 22848 bytes left
[ 2672.709380][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2678.661299][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2683.653252][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2689.350271][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2777.002656][T19618] ping (19618) used greatest stack depth: 22368 bytes left