Telnet script

[sama]

Hello freaks

I'm new in php.

I have this problem:

I want to change the password of a router periodically ( e.g every 2 hours ) using php script. I use the script available in this link:

http://www.geckotribe.com/php-telnet/

in this script, their is a possibility to send commands to the router ( any command like enable & password etc ) so we can change the password. how could we do that? generating a random password, then the pw expired when time is out ( after the 2 hours )? so that a different user can get another random password & so on.

any ideas plz! 

sama