[  494.885169][ T1912] gre: GRE over IPv4 demultiplexor driver
[  497.088945][ T1935] ip_gre: GRE over IPv4 tunneling driver
[  497.320691][ T1942] ip (1942) used greatest stack depth: 23904 bytes left
[  561.555646][ T2507] ip6_gre: GRE over IPv6 tunneling driver
[  589.476740][ T2757] ping (2757) used greatest stack depth: 23632 bytes left
[  599.561058][ T2851] ping (2851) used greatest stack depth: 23360 bytes left
[  605.742181][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  611.886114][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  617.007103][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  623.023181][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!