[ 3153.648766][T28934] gre: GRE over IPv4 demultiplexor driver
[ 3154.862159][T28958] ip_gre: GRE over IPv4 tunneling driver
[ 3190.870515][T29530] ip6_gre: GRE over IPv6 tunneling driver
[ 3205.836164][T29780] ping (29780) used greatest stack depth: 23296 bytes left
[ 3215.575739][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3219.415643][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3222.744652][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3226.519645][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!