IP spoofing

[Elias Athanasopoulos]

On Wed, Jun 28, 2000 at 10:07:23PM +0300, Navigator wrote:

> Pws mporei kapoios na kanei spoof thn IP diey8ynsh toy, kai, kyriotera,

Bres ena kalo biblio gia TCP/IP kai diabase to format enos IP datagram.

> pws mporei kapoios allos mesa apo ena programma toy na katalabei ean h
> diey8ynsh einai h pragmatikh 'h ayth poy o spoofer 8a h8ele poly na eixe?

Profanws ennoeis an o server mporei na katalabei an to IP paketo pou 8a
parei einai fake. Den mporei amesa. Apla stelnei ena paketo pisw ston 
client kai perimenei mia apanthsh. H apanthsh pou 8a prepei na steilei
o client "ftiaxnetai" me plhroforia pou uparxei sto arxiko paketo pou 
esteile o server. Epeidh omws to paketo auto de 8a ftasei pote ston client
(8a paei sthn original IP address), o teleutaios prepei na "mantepsei" thn
apanthsh.

Sto IPv4 auto einai _sxetika_ eukolo. Sto IPv6 ta packets exoun encrypted
headers kai genika h olh diadikasia einai _duskolh_.

Cheers,
Elias 

-- 
Elias Athanasopoulos  	 | I bet the human brain is |   H.E.P & Apps. Lab. 
http://www.uoa.gr/~eatha | a kludge. -Marvin Minsky | University Of Athens



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