[ 4365.836374][T20136] gre: GRE over IPv4 demultiplexor driver
[ 4368.017472][T20160] ip_gre: GRE over IPv4 tunneling driver
[ 4431.086137][T20733] ip6_gre: GRE over IPv6 tunneling driver
[ 4473.727343][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4479.743229][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4484.863247][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4490.879225][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4591.035924][T22214] ping (22214) used greatest stack depth: 22272 bytes left