How to block Torrents on ISA 2006

[midobashir]

Hello guys,
i would like to ask about something according to ISA server 2006
what if i want to block torrents downloads ?? is there that feature on ISA ? or there is another software which allow me to do so ??
Regards,

[localzuk]

The normal way of blocking something like P2P traffic is to do the following:

1. Set up a proxy server to server HTTP traffic
2. On your router, set up rules to only allow traffic from the proxy, blocking all other ports except those that are needed (such as email SMTP servers, or FTP etc...).
3. Either enter the proxy details into your clients so they use the proxy, or set it up as a transparent proxy and then use your DHCP server to set the proxy as your default gateway for the network.

Blocking torrents without setting up the above level of control would be pretty difficult, as they work across basically any port number.