# netstat -rn

Rounting Table: IPv4
Destination    Gateway       Flags     Ref    Use    Interface
-----------    ---------     ------    ---    ---    ---------
127.0.0.1      127.0.0.1      UH         1    345     lo0

Rounting Table: IPv6
Destination/Mask    Gateway       Flags     Ref    Use    Interface
---------------    ---------     ------     ---    ---    ---------
   ::1                ::1          UH        1     25     lo0