I am not sure if this is the right section, but I need some help. I will explain the situation and what I have attempted so far. I am doing a project. Basically there are 5 doctors who wish to merge their business together. All of the offices before the merger have outdated technology and all require upgrades. They had a Class C address in each location previously. Our job was to find a network solution for the new merger. What I have attempted so far was for them to purchase a single Class B address to use. Each building will have 4 subnets: Admin, Finance, Patient Records, Clients. I was told that going about my method using a class C would have run out of usable address space. I have attached what I think would work at this point, but I am still very skeptical on the design. Any input would be greatly appreciated. Thanks!