Describe your vision for addressing the security requirements in the overall technical design of the ABC Healthcare network. This should include both internal and external (untrusted and trusted) aspects. Untrusted would include user connectivity to the Internet. The "trusted" network has the main purpose of supporting the business functions of known entities (i.e. partners, suppliers, etc.) which have a business relationship with the company. Note that you are to concentrate on the physical and logical level, including the type of hardware and software, however you are not expected to provide specific low level details in terms of equipment suppliers or model numbers, etc. for your recommended design.