When editing a configuration for reuse on a replacement device, what should be removed?

When preparing a configuration for reuse on a replacement device, it is important to remove sensitive information that could compromise security or may not be applicable to the new device. Commands that start with 'enable secret' and 'username' contain credentials that grant access to the device. This information is specific to the previous device and should be eliminated to prevent unauthorized access or account conflicts on the new device.

For example, if the configuration is loaded on a new device, any existing 'enable secret' would provide access rights tied to the previous device's administrative credentials, potentially allowing unintended users to access the new device. Similarly, 'username' commands often define user accounts and associated privileges that may not be relevant or required on the replacement device.

In contrast, system status commands, routing commands, or configurations that relate only to expired IP addresses might be less critical in terms of security and could be retained if they are relevant to the new device's operation. Thus, focusing on removing sensitive access commands ensures that the new configuration is secure and appropriate for use.