[ 451.355408][ T2831] gre: GRE over IPv4 demultiplexor driver [ 453.459178][ T2855] ip_gre: GRE over IPv4 tunneling driver [ 517.246102][ T3433] ip6_gre: GRE over IPv6 tunneling driver [ 544.878482][ T3683] ping (3683) used greatest stack depth: 21848 bytes left [ 561.127228][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 567.207189][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 572.328151][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 578.408203][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!