[ 1597.250066][ T4198] gre: GRE over IPv4 demultiplexer driver
[ 1597.767165][ T4221] ip_gre: GRE over IPv4 tunneling driver
[ 1605.987571][ T4576] ping (4576) used greatest stack depth: 23328 bytes left
[ 1614.621274][ T4801] ip6_gre: GRE over IPv6 tunneling driver
[ 1620.622263][ T5051] ping (5051) used greatest stack depth: 23120 bytes left
[ 1625.674673][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1627.787628][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1629.707638][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1631.819624][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!