[ 2565.986170][T17625] gre: GRE over IPv4 demultiplexor driver
[ 2568.055998][T17648] ip_gre: GRE over IPv4 tunneling driver
[ 2626.668072][T18219] ip6_gre: GRE over IPv6 tunneling driver
[ 2646.815974][T18418] ping (18418) used greatest stack depth: 22640 bytes left
[ 2666.693658][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2672.389570][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2677.253559][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2683.076625][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!