[    2.135665] gre: GRE over IPv4 demultiplexor driver
[    2.236091] ip (252) used greatest stack depth: 12368 bytes left
[    2.359496] ip_gre: GRE over IPv4 tunneling driver
[    2.761056] ip (300) used greatest stack depth: 12352 bytes left
[   12.475938] ip6_gre: GRE over IPv6 tunneling driver
[   15.845783] ip6_tunnel: tep1 xmit: Local address not yet configured!
[   18.749800] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   20.221808] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   21.629788] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   23.165772] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   35.403857] ping (2223) used greatest stack depth: 12288 bytes left