Cisco 4000 Series ISRs Software Configuration Guide, Cisco IOS XE Gibraltar 16.12.x - Managing the Device Using Web User Interface [Cisco 4000 Series Integrated Services Routers] - Cisco
How to Log into the Graphical User Interface (GUI) of a Cisco Business Router - Cisco
Solved: Reset Username & password - Cisco Community
PuTTY login to Cisco Router using SSH protocol
Basic Router Commands and Tasks
List the default password of Cisco routers and switches
CCNA Training » Configure Cisco Router Passwords – GNS3 Lab
Access the Web-Based Setup Page of the VoIP Router - Cisco
Login and Account Help - Cisco
How do I configure a Cisco router for secure remote access using SSH? – O'Reilly