*warning* student question

[Aaron Scribner <awscrib () comcast net>]

I have been lurking on this list for about 3 months now....and I am more 
clueless now than when I signed up.

One day talking to my prof after a UNIX/TCP class, we started talking about 
raw socket programming.  My prof introduced the idea of being able to 
program with raw sockets to "hijack" a connection.  He presented this to a 
buddy of mine and I as a self-study in the Network Lab.  Basically, be able 
to get into a system without a trace and be able to receive the packets 
back.  I know you can change the IP and MAC ID of the IP header, but then 
you have to worry about the random CRC of IPv6 (and being on this list and 
reading, I found out most routers will just drop invalid packets).  I 
COMPLETELY have not a clue where to start.  I read whatever I could get my 
hands on over the winter break, but I know nothing when it comes to network 
security, just network communication through code.  I have a background in 
c/c++ and a couple years of game development (then went back to school 
after the game flopped), so network security is far from my specialty.

The point of this email, is this even possible to accomplish?  We have 
another project that we can work on that we will be able to complete to 85% 
no problems.  Should we attempt to take on the "network hijacking" project 
or just look at something else.  I do not need a solution to the problem, 
as that would defeat the purpose of the class, just curious if anyone has 
researched this or attempted to do it themselves.

Thanks for the bandwidth,

Aaron


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