Hi,
I work in the field of ip and all that mullarkey,here's the deal most isp's assign you your ip address using a process called nat,
network address translation,because the current version of ip addressing,ipv4,is running out of address space your isp assigns you
two addresses inside local,your adress,and outside global,your "translated" address to surf and visit this prim,o site,so unless you
are a major threat it would be hard to find you and a major wastage of resources,to find someone who has a social conscience and
grow's their own weed for personal use so as to not fund ruthless and violent drug lord's,no victim no crime etc!!!And the only thing that ties your address
to your computer is your mac address so if yo are paranoid enough(I am) you can change it using the freeware found here
http://www.technitium.com/tmac/index.html for vista and xp!
http://www.voidnish.com/articles/ShowArticle.aspx?code=MacIdChanger this one is the best but is for xp only!!!!
just change the last three sets of numbers using numbers from 1-9 and letters a to f as its in hexidecimal notation!!!
ps don't forget to reset it to the original address after you use it,