I have a local network, I can monitor all traffics there. Bandwidth for each user is limited, and usually all computers are NOT using their total bandwidth. So, if I can find a way to send requests on their behalf, then I can increase my bandwidth for some special purposes. So, the first question that comes in mind is How do I send HTTP request on behalf of some other machines in my local network?
Note:Lets mention that if the answer to my request goes to somewhere I'm not, then this wouldn't be a big problem.