[  418.578268][ T2638] gre: GRE over IPv4 demultiplexor driver
[  420.633349][ T2662] ip_gre: GRE over IPv4 tunneling driver
[  481.739068][ T3234] ip6_gre: GRE over IPv6 tunneling driver
[  526.127703][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  532.270676][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  537.838669][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  543.913413][ T3773] ping (3773) used greatest stack depth: 23008 bytes left
[  544.878682][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!