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hmmmm....here's a interresting question that somehwat has something do to with the current topic...I have heard of people forging their ip address' so that when somebody looks up your ip it will show whatever you want it to show....Is this possible...And if so does anybody know any information on it
you mean IP spoofing ?
amungst other things, an IP packet contains a "from address", a "to address" and "data"
you need "root" or "super user" access levels, but it is possible to manually construct an ip packet, and lie when you insert the "from address"
meaning when your packet is sent, the reciever will think it came from a different place.
unless you are planning a DOS attack, you can only forge your address with protocols ICMP, UDP and IGMP.
the TCP protocol is a connection protocol, if you forge your from address, the reply to the connection attempt will be sent to the wrong address, the handshake never made, and no connection opened.
here's an old example... the orginal Quake server from ID software had a backdoor.
the backdoor would follow instructions sent to it from ID software's IP address range over a UDP port.
it was possible to send instructions to quake servers, forging the from address to ID software's IP address.
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