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RE: security based on IP address
From: "Aditya, ALD [Aditya Lalit Deshmukh]" <aditya.deshmukh () online gateway technolabs net>
Date: Wed, 3 Mar 2004 06:04:00 +0530


Hi there,  My ISP provides internet access based on IP address. 
As in, he gives static IP addresses to its customers and 
allows/disallow internet access based on the same.   1. What am 
wondering at is, what if my ip address is blocked but I take over 
somebody else's ip address and try to connect to the internet? 
Will the ISP's proxy detect this?  This leads to the second 
question.. 

that depends upon what kind of connection you have to the net ... with dial up connection there is no way, with some 
kind of ethernet based connection you may be able to do mac spoofing and get past the isp proxy server. the isp proxy 
server may be able to detect this if they have configured it properly


2. Can I take over the ip address of a system that is 
already up?   Gracias, Amit


mac spoofing ... will allow you to do it

aditya


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