Corrupted ETM-MAC on Input

Last week, after I upgraded an ISR4K to version 17.12.64, we encountered an issue where, after entering the password while SSH to the router, i received the error below. There was not much information specific to Cisco about why this occurred. However, there was generic information on the internet regarding this error, which did not…

SSH Cisco IP Phone’s

SSH (Secure Shell) access to Cisco IP Phones is designed primarily for advanced troubleshooting, diagnostics, and maintenance rather than routine administrative tasks. The main purpose of SSH on Cisco IP Phones is to support diagnostic and technical assistance efforts, providing administrators and engineers with direct access to the phone’s internal systems for resolving issues that…