First, the scanner performs IP range sweeps, scanning vast blocks of addresses for open ports associated with router administration (commonly port 80 for HTTP, 443 for HTTPS, 23 for Telnet, and 22 for SSH). Once a candidate router is found, the program launches a dictionary attack, testing hundreds of default credentials—such as admin/admin , root/1234 , or vendor-specific defaults from manufacturers like TP-Link, D-Link, and Zyxel. The 2.60 version, one of the more widely distributed releases, is noted for its extensive built-in credential database and its ability to identify router models based on banner grabbing. If successful, the tool can extract configuration backups, WPA/WPA2 keys, and even alter DNS settings.
: Attempting to bypass or guess admin credentials to access the router's control panel. Router Scan 2.60 skacat-