Subnetting exercise 1.
You have been hired as the network consultant by Busy builders who have requested you subnet their network.

Busy Builders have the following requirements:

All pcs have private internal ip addresses, however they all need to be accessible over a VPN that connects all the offices together.

It has been decided to subnet each office for security and policy reasons.

Each office has an ADSL connection to the internet over which all internet trafic travels including vpn trafic between offices.

In the future this company wants to implement Ipv6 however they are not ready for that level of complexity at this time.

The manager expects the number of people in each office to increase by at least 25% over time, and wants the network structure to cope with expansion in the future without renumbering machines.

Each office has 2 departments, management and the builders. Each department should be on its own subnet since sensitive data is stored on the admin computers.

The managers want each office on a class C private ip range.
there should be 3 subnets; one for printers and servers, one for admin workstations and one for builder's machines.

The offices have the following number of staff:

head office: 15 admin staff, 5 builders, 3 servers and 4 printers.

office 2: 
10 builders, 5 admin staff, 2 printers and 2 servers.

office 3: 10 builders, 2 admin staff and 1 printer and 1 server.

Office 4: 5 builders and one server.


Suggest a subnet scheme for this organization, putting each ofice on a separate class c.
Do not forget to leave space for the router on the subnet.