First off; I'm not a networking expert so forgive me if anything I ask here is blindingly obvious, or I use the terminology incorrectly :)
My company has recently moved office to a new building where internet access is included in the rent. However, from what I can gather all machines in the building simply connect to one big switch (I can see lots of unknown machines on the network, and presumably they can also see our machines).
For the record, we have about six Windows 7 machines, a Windows Server 2008 machine and some printers.
I'd like to create an isolated network for the company but still maintain access to the internet. How can I achieve this?
We have a couple of off-the-shelf routers that were used in our previous office - will we need to buy additional hardware to create the setup we want (a managed switch and/or firewall, for example?)