The PFsense firewalls average about 10% CPU utilization in that case. I assume that you understand the risks of running your firewall on your VM host and not a dedicated piece of equipment. I also ...
So we see lots of posts about roll your router via ddwrt, tomato, merlin, etc why not the equivalent for modems? I am thinking this would be ideal to roll into pfsense on a VM Of course I don't know ...