[ 4509.869336][T26160] gre: GRE over IPv4 demultiplexor driver
[ 4512.018418][T26183] ip_gre: GRE over IPv4 tunneling driver
[ 4572.871318][T26755] ip6_gre: GRE over IPv6 tunneling driver
[ 4598.922053][T27004] ping (27004) used greatest stack depth: 23616 bytes left
[ 4614.448695][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4620.272627][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4625.137606][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4630.896618][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!