Is it possible to imitate a fake IP on top of a real IP?

[wisely77]

IP imitation

hi,

is it possible to imitate a fake ip on top of a real ip as show as below.
<pre>
+--------+
| | IP x.x.x.x +-----+ passworded user +-----+ IP y.y.y.y +-----------+
| PC |-----+----------------------| ISP |----------------------|Proxy|----------------|Destination|
| | . (assigned by ISP) +-----+ +-----+ .........| server |
+--------+ . . +-----------+
................... imitated ip y.y.y.x ...........................
</pre>

please remote this if you think i'm put in the wrong place.

thank you.

wisely

 

[dainis]

Re: IP imitation

It is possible by VPN (Virtual Private Networking) or IP tunnels or PPPoE ( PPP over Ethernet), but for these all cases you need normal IP connection to internet provaider.