[ 1646.167479][T21499] gre: GRE over IPv4 demultiplexer driver
[ 1646.663512][T21522] ip_gre: GRE over IPv4 tunneling driver
[ 1662.485590][T22093] ip6_gre: GRE over IPv6 tunneling driver
[ 1670.053966][T22436] ping (22436) used greatest stack depth: 23168 bytes left
[ 1672.945176][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1674.993150][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1676.849135][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1678.898140][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!