[ 3578.053201][T17545] gre: GRE over IPv4 demultiplexor driver
[ 3580.425336][T17568] ip_gre: GRE over IPv4 tunneling driver
[ 3643.887131][T18149] ip6_gre: GRE over IPv6 tunneling driver
[ 3645.680236][T18160] ping (18160) used greatest stack depth: 23376 bytes left
[ 3688.044124][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3694.187993][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3699.436018][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3705.515006][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3744.804013][T19059] ping (19059) used greatest stack depth: 22608 bytes left