how can i block streming trafic such as radio, video and so one?(do they wont on diffrent ports?)

hi

i have simple network topology, no proxy and so on.., only firewall.

how can i block access to streaming such as radio and video and so on ?(in order to reduce bandwide)

does thos steaming work on diffrent ports or they use port 80?

thanks.
ymg800Asked:
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lancecurwensvilleCommented:
You could simply create an account with OpenDNS, set your DNS statically to use their servers, and create a rule to block streaming audio/video.  If you don't have a static IP, you will need to download their dynamic IP client (also free).
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SyedJanCommented:
What kind of firwall your are using ?
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ymg800Author Commented:
Mandriva Network Firewall
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Kruno DžoićSystem EngineerCommented:
what is your firewall?
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Kruno DžoićSystem EngineerCommented:
firewall must be configured in the way
 block all , except ( ports that you need ) , in that way you narrow down "problematic ports"

most of stream radio station use port 80,
 you can monitor traffic, and add IP address of stream radio's to deny access list

i don't know how mandriva work's but i belive that you can add proxy or some sort of add-on for that purpose ( url-filter or something )
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ymg800Author Commented:
i have found on the following links that there are some protocol /port that i cant denie access by blocking them?

http://forums.devshed.com/networking-help-109/disabling-streaming-on-network-360996.html

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lancecurwensvilleCommented:
Forgot to add...w/ OpenDNS, you also have the ability to filter objectionable content.  The fee based version allows you to setup groups for varying levels of access.
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