I have to configure Cisco 3550 switch L3 that will allow 30 offices all within the same big building to share internet. Each office will have around 5-10 Pc's/Servers. Severs'( Email/Web) need to accessiable from internet. Pc's from one office should not be able to talk to the Pc's in other offices. Each office will have there own router/switch ( for NATing ) which will be connected to Cisco 3550 via Ethernet cable.
10MB Internet will be terminiated on Cisco 3350's fastethernet interface and from there it will be distributed to each office. I have more than 30 public IP address available to support this desing.
I was thinking to create 30 VLANS's ( one for each office ) and assign a public IP to each vlan interface but form that point onward, I can't think how to configure of the network ?
Please see the attached diagram to undestand what I am trying to achieve.
All I need is to provide a ethernet socket to each office with internet connection( one public IP is needed to each office) where each office will plug there own router/switch for Internet connectivity and LAN.
Can you think of the easites way to configure this network ?
Many thanks for your advise.