[ 1710.451027][ T1899] gre: GRE over IPv4 demultiplexer driver
[ 1710.919184][ T1922] ip_gre: GRE over IPv4 tunneling driver
[ 1727.199151][ T2502] ip6_gre: GRE over IPv6 tunneling driver
[ 1732.886727][ T2752] ping (2752) used greatest stack depth: 23232 bytes left
[ 1735.122861][T20828] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1737.810793][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1739.858789][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1741.715786][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1743.763793][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1765.110747][ T3882] ping (3882) used greatest stack depth: 22912 bytes left