My current setup:
We lease one half of our building (upstairs and downstairs of West half). We are a small company of <50 employees running a W2k domain with about 70 nodes, 6 servers (1 single Exchange server), and are fairly strapped when it comes to server space ane email (running Exchange 2000 standard w/16GB database limit) space. We have a single Full T1 coming in. Currently only our half of the building is wired with Cat5 for phones and data.
Now, we are talking about leasing the other half and only using a small portion for us and subleasing the remainder out to two small companies (one is only 5 people, the other will be about 15 people). I was asked what it would entail network-wise for this to happen. We do not want the other companies on our network (obviously). I'm thnking that both companies will be using our current T1, router and firewall.....How can I seperate them into three seperate "entities"?