how to deny traffic

hello for all
i have users in my network use many website to bypass proxy and use tor browser portal apps and this applaction use port 80 and 443
i have cisco router 2811
how i can block traffic for tor browser and how i block it by asa 5510
zizo1982Asked:
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bbaoConnect With a Mentor IT ConsultantCommented:
> i have users in my network use many website to bypass proxy

so what are you aiming for? to make all users to access the internet via an internal proxy server you assigned?

Tor is designed to be very resilient and it encrypts and re-encrypts most of the connection traffic, and those users need to connect through a series of randomly selected node computers to reach the final destination.

it's really hard to find a feasible way to block it at the firewalls.
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bbaoIT ConsultantCommented:
why the grade is average? just because it says "it's really hard to find a feasible way to block it at the firewalls"?
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