This route is cloned. Cloned routes are routes coming from the cache instead of the FIB. For
IPv4, the cache was removed in Linux 3.6 (see IPv4 route lookup on Linux for more information
about IPv4 routing)
Show the table from which the lookup result comes. Note that before commit c36ba6603a11, Linux
would always hardcode RouteMessageHeader.table (known as rtmsg.rtm_table in the kernel) to
RT_TABLE_MAIN.