جهت دارپ نمودن ترافیک تورنت میتوانید به یکی از 2 روش زیر اقدام نمایید.

iptables -A FORWARD -m string --string "BitTorrent" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "BitTorrent protocol" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "peer_id=" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string ".torrent" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "announce.php?passkey=" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "torrent" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "announce" --algo bm --to 65535 -j DROP
iptables -A FORWARD -m string --string "info_hash" --algo bm --to 65535 -j DROP

OR

iptables -A FORWARD -m string --algo bm --string "BitTorrent" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "BitTorrent protocol" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "peer_id=" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string ".torrent" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "announce.php?passkey=" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "torrent" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "announce" -j LOGDROP
iptables -A FORWARD -m string --algo bm --string "info_hash" -j LOGDROP