[  483.794773][ T1910] gre: GRE over IPv4 demultiplexor driver
[  485.428482][ T1930] ip (1930) used greatest stack depth: 23824 bytes left
[  486.016460][ T1934] ip_gre: GRE over IPv4 tunneling driver
[  547.908433][ T2506] ip6_gre: GRE over IPv6 tunneling driver
[  574.518868][ T2755] ping (2755) used greatest stack depth: 23360 bytes left
[  590.456717][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  596.600668][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  601.720639][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  607.608658][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  646.060066][ T3417] ping (3417) used greatest stack depth: 22512 bytes left