We are moving to new building where we are going to be sharing an Internet Connection with 3 other companies. Now, each company will have their own internal network (pcs/servers), but we will all be sharing a high speed fiber internet connection. What do you think I should consider when setting up this network? I proposed a main Firewall which would handle the connection from the ISP. From there, I was thinking about a Cisco 3560 L3 switch as the main VLAN gateway which each company having its own VLAN. Each company would have their own Cisco 2960's which connect back to the 3560.
Let me know your thoughts.