How to intercept HTTP requests and responses of a client machine (like fiddler does)

Question

I thought that the only way to intercept a request is to use a proxy, but fiddler somehow can intercept HTTP requests and responses without configuring anything on any brows

Answer 1

Another way to intercept traffic without a proxy is WCCP on a supported device.

http://www.cisco.com/en/US/docs/ios/11_2/feature/guide/wccp.html