[ 3529.868549][T17738] gre: GRE over IPv4 demultiplexor driver [ 3531.885603][T17762] ip_gre: GRE over IPv4 tunneling driver [ 3559.317181][T18014] ping (18014) used greatest stack depth: 22384 bytes left [ 3594.047262][T18335] ip6_gre: GRE over IPv6 tunneling driver [ 3637.101195][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3643.053102][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3648.045092][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3653.933105][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured!