[  253.362794][ T3608] gre: GRE over IPv4 demultiplexer driver
[  253.909218][ T3631] ip_gre: GRE over IPv4 tunneling driver
[  269.940512][ T4202] ip6_gre: GRE over IPv6 tunneling driver
[  275.369448][ T4451] ping (4451) used greatest stack depth: 23872 bytes left
[  280.266579][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  282.250563][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  284.106550][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  286.090565][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!