A flood of incoming connections being blocked, help!

My Norton Internet Security (Comcast version)'s Firewall section is currently blocking a flood of incoming connection attempts.  All some sort of BitTorrent connection.  There have been over 300 in the past 20 minutes.

 

What do I do??  

EDIT/Addition:  The Local port is 6881 each time.

EDIT2:  Will this affect other computers on my network?  There's a iPad also using this internet connection via a wireless base station, and I'm worried how it will be affected.

EDIT3: (edited product name above for clarity)