限速∶
access-list 130 remark BT
access-list 130 permit tcp any any range 6881 6890
access-list 130 permit tcp any range 6881 6890 any

rate-limit input access-group 130 712000 8000 8000 conform-action transmit exceed-action drop
rate-limit output access-group 130 712000 8000 8000 conform-action transmit exceed-action drop

禁止∶
access-list 130 deny tcp any any range 6881 6890 access-list 130 deny tcp any range 6881 6890 any

ip access-group 130 in / out
不過有的bt軟件，再封鎖后會自動改端口