[ 1755.126432][ T5896] gre: GRE over IPv4 demultiplexer driver
[ 1755.637991][ T5919] ip_gre: GRE over IPv4 tunneling driver
[ 1772.514703][ T6496] ip6_gre: GRE over IPv6 tunneling driver
[ 1780.745156][ T6840] ping (6840) used greatest stack depth: 22416 bytes left
[ 1783.744774][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1785.856729][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1787.777724][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1789.889727][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!