[ 1855.968194][T17949] gre: GRE over IPv4 demultiplexer driver
[ 1856.457389][T17972] ip_gre: GRE over IPv4 tunneling driver
[ 1864.639177][T18318] ping (18318) used greatest stack depth: 23360 bytes left
[ 1873.395437][T18550] ip6_gre: GRE over IPv6 tunneling driver
[ 1879.393871][T18806] ping (18806) used greatest stack depth: 23184 bytes left
[ 1884.522410][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1886.635376][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1888.554389][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1890.666379][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1913.881137][T19982] ping (19982) used greatest stack depth: 22704 bytes left