[ 1557.983636][ T1799] gre: GRE over IPv4 demultiplexer driver
[ 1558.447145][ T1822] ip_gre: GRE over IPv4 tunneling driver
[ 1574.038071][ T2393] ip6_gre: GRE over IPv6 tunneling driver
[ 1581.297818][ T2736] ping (2736) used greatest stack depth: 22240 bytes left
[ 1584.127952][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1586.111925][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1587.966921][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1589.950934][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!