I have spoken to some people recently who have begun to aggressively filter out P2P protocols on their corporate networks. After having undergone some performance issues a network survey was undertaken at one colleagues place of work. It was found that an enormous amount of bandwidth was being used by people using several types of P2P protocols to download various media at work. The sole reason for the crackdown was not because of bandwidth consumption only, but also the very real problem of copyright infringement and the possible legal fallout arising from that. Question is, are any of you undertaking any similar style crackdowns?