Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re: Simple Construction of a RAW TCP/IP Packet.

by Anonymous Monk
on Jun 13, 2010 at 10:47 UTC ( #844426=note: print w/ replies, xml ) Need Help??


in reply to Simple Construction of a RAW TCP/IP Packet.

Hi,
Thanks for this piece of code - it wonderful. However, I noticed that it appears that the tcp checksum calculation is not correct. I made tcp captures and tcpdump report the checksum is incorrect for TCP. I could not get any server to answer SYN-ACK to this SYN packet (tried with standard sshd and httpd), which confirms that the checksum is wrong. I am doing the research right now and trying to rewrite the checksum part.
Cheers, Alex


Comment on Re: Simple Construction of a RAW TCP/IP Packet.
Re^2: Simple Construction of a RAW TCP/IP Packet.
by Anonymous Monk on Jun 16, 2011 at 13:56 UTC
    Alex- Did you manage to get anywhere with the re-write?

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://844426]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (6)
As of 2015-07-05 05:06 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (60 votes), past polls