[ 1749.729639][ T5277] gre: GRE over IPv4 demultiplexer driver
[ 1750.208641][ T5300] ip_gre: GRE over IPv4 tunneling driver
[ 1767.199194][ T5872] ip6_gre: GRE over IPv6 tunneling driver
[ 1775.590737][ T6217] ping (6217) used greatest stack depth: 22864 bytes left
[ 1778.519767][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1780.631729][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1782.614732][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1784.726735][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1807.581614][ T7253] ping (7253) used greatest stack depth: 22704 bytes left