[  693.345247][T24770] gre: GRE over IPv4 demultiplexer driver
[  693.641193][T24793] ip_gre: GRE over IPv4 tunneling driver
[  705.033985][T25364] ip6_gre: GRE over IPv6 tunneling driver
[  709.931141][T25707] ping (25707) used greatest stack depth: 23528 bytes left
[  712.480110][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  714.080112][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  715.616120][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  717.216106][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!