[  325.482452][ T2863] gre: GRE over IPv4 demultiplexor driver
[  327.084516][ T2886] ip_gre: GRE over IPv4 tunneling driver
[  374.374278][ T3467] ip6_gre: GRE over IPv6 tunneling driver
[  393.756353][ T3716] ping (3716) used greatest stack depth: 23440 bytes left
[  397.445003][   T64] ip6_tunnel: tep1 xmit: Local address not yet configured!
[  405.828685][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  410.564695][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  414.597681][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  419.204695][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!