Running a few vlans general access NAS/SAN network guest wireless dmz test lab wan total nodes is less than 20 with a number of them being vm's. As the pfsense box is a VM I've only got vlans 1,3, and 6 going physical.

@craigduff: In your opinion are big corporates running pfsense? Or do you think companies are now swaying more towards an open source solution? When i have worked for big companies in the city they all seem to be running Cisco or Juniper etc… Iv been a pfsense fan now for 3 years now and love it! And would always implement pfsense when i can. For basic filtering and routing Pfsense does a great job ….. add in the fact it has many useful plug-ins its a Ideal Platform for home or small businesses with micro budgets. But if your top priority is security, corporations will use Cisco, Juniper ...etc. because you have more security options but they may use Pfsense as DMZ's etc.....behind them to save a few dollars. If security isn't there top priority I suppose some corporations may use them on the front line of defense to save some dollars. If your a true security expert and spend 8 hours a day 7 days a week managing a pfsense Firewall I suppose you could by using snort and the firewall filters maintaining a set of custom rules to defend the network. It would be a never ending process new rules every day being added. But this is why you subscribe to a professional security firm selling subscriptions which allow you accesses to there custom rules for just a few thousand dollars a year. One of the nice things about Pfsense is the fact you pick your own hardware ..... Old computer you just retired, or buy a new state of the art computer system.