[  325.741426][ T2863] gre: GRE over IPv4 demultiplexor driver
[  327.277004][ T2886] ip_gre: GRE over IPv4 tunneling driver
[  373.960762][ T3465] ip6_gre: GRE over IPv6 tunneling driver
[  400.744051][ T3808] ping (3808) used greatest stack depth: 23440 bytes left
[  405.764600][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  410.435545][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  414.467556][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  419.139584][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!