[ 1749.797718][ T5731] gre: GRE over IPv4 demultiplexer driver
[ 1750.284208][ T5754] ip_gre: GRE over IPv4 tunneling driver
[ 1766.782427][ T6328] ip6_gre: GRE over IPv6 tunneling driver
[ 1774.791026][ T6672] ping (6672) used greatest stack depth: 22560 bytes left
[ 1777.668775][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1779.780743][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1781.699797][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1783.812742][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1808.048041][ T7818] ping (7818) used greatest stack depth: 22208 bytes left