[ 4308.000061][T20407] gre: GRE over IPv4 demultiplexor driver [ 4310.160924][T20431] ip_gre: GRE over IPv4 tunneling driver [ 4372.734714][T21005] ip6_gre: GRE over IPv6 tunneling driver [ 4399.303478][T21254] ping (21254) used greatest stack depth: 21584 bytes left [ 4414.902443][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4420.790392][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4425.654366][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4431.543355][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!