[  620.966230][ T7780] gre: GRE over IPv4 demultiplexer driver
[  621.584550][ T7804] ip_gre: GRE over IPv4 tunneling driver
[  630.438613][ T8152] ping (8152) used greatest stack depth: 23768 bytes left
[  639.595164][ T8377] ip6_gre: GRE over IPv6 tunneling driver
[  645.157609][ T8023] ip6_tunnel: tep1 xmit: Local address not yet configured!
[  646.299457][ T8626] ping (8626) used greatest stack depth: 22952 bytes left
[  651.756896][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  653.996872][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  656.045889][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  658.285905][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!