IP address forging

["Hanuska Ivo" <hanuska () asd-software cz>]

I have question which does not make me sleep:

Is it possible to forge my IP address? Imagine situation that I am connected with some sort of link (not Ethernet like 
device, there is answer simple, just use ARP manipulation methods) possibly by modem to Internet and I want to forge my 
IP address (so I do want to pretend, that my IP address is different that really is).

Is there somewhere some information about such a procedure and how to protect my resources from connections from such 
forged IP address?

Thank you all,

Ivo Hanuška


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