[ 4370.906192][T29208] gre: GRE over IPv4 demultiplexer driver
[ 4372.539545][T29231] ip_gre: GRE over IPv4 tunneling driver
[ 4422.136514][T29803] ip6_gre: GRE over IPv6 tunneling driver
[ 4443.431547][T30052] ping (30052) used greatest stack depth: 23440 bytes left
[ 4443.871475][T19811] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4456.284433][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4461.276423][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4465.500401][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4470.429420][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!