Tales from the Trenches: Vol 9 — The Law of Unintended Consequences, OR Some Doors Swing Both Ways
“The law of unintended consequences” states that the more complex the system, the greater the chance that there is no such thing as a small change.
While working with a customer in the early days of my RedSeal Professional Services tenure, I looked for an opportunity to prove the capability of Zones & Policies. In an unfamiliar environment, the easy starting point is creating a policy that examines the access from “Internet to all internal subnets.” It is easy to setup and easy to discuss the results, UNLESS the results say that most of the Internet can get to most of the internal network.