We are preparing to lease office space and would like to provide internet access via our production infrastructure and would like some recommendations as how to proceed.
Our current infrastructure is as follows:
Cisco 6509 Layer 3 switch with a route to an ASA 5520 as its default gateway. .
When we lease teneant space, we'd like to provide internet access but with abosultely no way of getting to our internal network.
What is the best way to segregate their traffic not only from us but other tennants?
I do understand VLAN's will provide the segregation but won't the router just route and allow access to the other VLAN's?