[ 1581.672629][ T2056] gre: GRE over IPv4 demultiplexer driver
[ 1582.145175][ T2079] ip_gre: GRE over IPv4 tunneling driver
[ 1597.795492][ T2650] ip6_gre: GRE over IPv6 tunneling driver
[ 1605.156172][ T2993] ping (2993) used greatest stack depth: 22816 bytes left
[ 1608.009970][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1610.057913][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1611.914912][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1613.897922][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!