[ 1643.967492][ T2311] gre: GRE over IPv4 demultiplexer driver
[ 1644.495595][ T2334] ip_gre: GRE over IPv4 tunneling driver
[ 1660.393413][ T2916] ip6_gre: GRE over IPv6 tunneling driver
[ 1665.981295][ T3165] ping (3165) used greatest stack depth: 23072 bytes left
[ 1670.811772][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1672.795730][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1674.651732][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1676.635734][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!