[ 3216.357378][T28931] gre: GRE over IPv4 demultiplexor driver [ 3217.539334][T28954] ip_gre: GRE over IPv4 tunneling driver [ 3255.239441][T29531] ip6_gre: GRE over IPv6 tunneling driver [ 3271.009881][T29782] ping (29782) used greatest stack depth: 23296 bytes left [ 3280.852665][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3284.628576][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3287.892579][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3291.604586][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3338.859158][T30865] ping (30865) used greatest stack depth: 22736 bytes left