Assessing the Risk
The most important thing you need to understand is the risks involved in setting up networks via insecure installations. Insecure installation of network devices such as routers and switches would be classified as installs that can be attacked physically or via a configuration weakness.
Let us give you an example: Keeping your network devices under lock and key would prevent meditated physical attacks on the devices. It all depends on the type of environment you work in. Risk can be classified as low or high. High risk is associated with mission-critical devices, and these devices, in most cases, are your backbone routers and distribution layer switches.
Various Physical Threats and Mitigation
Physical threats have four parts: