SecureCRT Script for Mass Changing Cisco Switch/Router Passwords
Attached to this post is a simple script which connects over either Telnet or SSH to a list of devices and resets the enable password, local password for the vty lines, and the console password. The script will login either with a username/password pair
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Read the complete post at http://briandesmond.com/blog/archive/2006/09/05/SecureCRT-Script-for-Mass-Changing-Cisco-Switch_2F00_Router-Passwords.aspx