[ 4402.222430][T29136] gre: GRE over IPv4 demultiplexer driver
[ 4404.048637][T29159] ip_gre: GRE over IPv4 tunneling driver
[ 4456.489993][T29730] ip6_gre: GRE over IPv6 tunneling driver
[ 4478.580211][T29979] ping (29979) used greatest stack depth: 22752 bytes left
[ 4492.027891][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4497.083806][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4501.371772][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4506.299784][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!