[ 4293.960051][T19816] gre: GRE over IPv4 demultiplexor driver
[ 4295.583228][T19839] ip_gre: GRE over IPv4 tunneling driver
[ 4344.777102][T20418] ip6_gre: GRE over IPv6 tunneling driver
[ 4377.913684][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4382.778621][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4387.001613][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4391.865638][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4558.230159][T22941] ping (22941) used greatest stack depth: 23248 bytes left