[ 3283.152798][T23669] gre: GRE over IPv4 demultiplexer driver
[ 3284.756807][T23692] ip_gre: GRE over IPv4 tunneling driver
[ 3332.532660][T24264] ip6_gre: GRE over IPv6 tunneling driver
[ 3348.953611][T24464] ping (24464) used greatest stack depth: 23536 bytes left
[ 3356.803042][T23117] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3365.504002][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3370.367986][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3374.528967][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3379.328012][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3409.591974][T25175] ping (25175) used greatest stack depth: 23392 bytes left