Hi,
If you need to have a virtual router then there's a wide variety you can install...
Google for one of the following:
- pfSense
- OPNsense
- freeSCO
- microtik (they have a x86 vm appliance)
- openWRT (x86 version, never tried myself)
I'm sure there are more, but the above should get you started.
--
Wil