|
|
Sponsored Content
Top Forums
Programming
Disabling IP Checksum Calculation
Post 302200026 by andryk on Wednesday 28th of May 2008 08:56:26 AM
05-28-2008
Quote:
Hello Friends,
I'm constructing the IP Packets by using the RAW Sockets. If I give any value for VER/TTL/Protocol the packet is being transmitted with that particular values.
But in case of IP Checksum, I'm always getting the correct checksum value irrespective of the value I give.
Can anyone please let me know, who is filling the correct checksum and how to disable it??
Thanks in Advance.
Regards,
Aamir
I'm constructing the IP Packets by using the RAW Sockets. If I give any value for VER/TTL/Protocol the packet is being transmitted with that particular values.
But in case of IP Checksum, I'm always getting the correct checksum value irrespective of the value I give.
Can anyone please let me know, who is filling the correct checksum and how to disable it??
Thanks in Advance.
Regards,
Aamir
, what option did ya use after opening the socket ???AFAIK, if you include the ip header (which you did) then the kernel will compute that checksum for you if checksum field is 0 otherwise your packet will be sent using that value... So your problem seems a bit weird to me too
|
|
10 More Discussions You Might Find Interesting
1. SCO
Does anyone know the answer to this?
When I run "sum -r" on a file that I've down loaded from the sco website, the 1st set of numbers differs from the checksum on the download page but the
2nd set matches.
If I try to install the patch, I get errors.
Anyone has an answer? (3 Replies)
Discussion started by: jn5519
3 Replies
2. Solaris
Hi Community,
Does anyone know how Disabling checksum offload on Solaris10?
Please help me, this issue is very urgent
Thank you
Have a nice day (3 Replies)
Discussion started by: Sunb3
3 Replies
3. Solaris
Anyone can tell me the different between "cksum" and "sum" command on Solaris? I read the man pages but still not get it.
And how to display the md5 checksum for a file.
Thanks, (1 Reply)
Discussion started by: redstone
1 Replies
4. Shell Programming and Scripting
I wanted a script that can give the checksum of a particular zipped file.
Can somebody help me in writing a shell script in getting the checksum of a particular tar file. (1 Reply)
Discussion started by: vkca
1 Replies
5. Shell Programming and Scripting
Hi ALL,
I use solaris OS and SFTP to get/put files from remote server.I use the below command ,
sftp user@host<<EOF
cd "dir"
get --checksum "filename"
EOF
I am getting a strange error as " get --checksum INVALID paramter". It has been working succesfully since last 3 years but all of a... (1 Reply)
Discussion started by: mohanpadamata
1 Replies
6. Shell Programming and Scripting
Hi Guys,
Sometimes, I have a problem with transferred files in ftp session. Thats why I want to produce checksum value in my local server and remote server. But I could not find anyway to produce checksum value of transferred files in remote server.
Do you have any idea?
Thanks,
Emre (3 Replies)
Discussion started by: ce_emre21
3 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
In file transfer with sftp protocol, what is the purpose "checksum" solves? Is this something not getting the file which has already been bought?
Waiting for your response !!! (1 Reply)
Discussion started by: sk84993
1 Replies
8. IP Networking
Hello
I am communicating with two devices using my computer over UDP protocol. The application is running fine. When I monitored the UDP traffic using Wireshark software, I found that there were too many Checksum errors.
Please find attached the png file showing this error. I am about to... (0 Replies)
Discussion started by: AustinCann
0 Replies
9. Solaris
Hi Guys,
I have about MD5 checksum so many times but I can't figure out how to use it. Can someone please show me how to perform an MD5 checksum?
Thanks a lot guys. (1 Reply)
Discussion started by: cjashu
1 Replies
10. Shell Programming and Scripting
is there a way to get a script to do a checksum on itself?
something like this:
#!/bin/sh
myexpectedsig=$(cksum $0 | awk '{print $1}')
if ; then
exit
else
who
uptime
date
fi
im looking for something that would always represent the running script, which is why im... (6 Replies)
Discussion started by: SkySmart
6 Replies
LEARN ABOUT DEBIAN
shishi_authenticator_set_cksum
shishi_authenticator_set_cksum(3) shishi shishi_authenticator_set_cksum(3) NAME
shishi_authenticator_set_cksum - API function SYNOPSIS
#include <shishi.h> int shishi_authenticator_set_cksum(Shishi * handle, Shishi_asn1 authenticator, int32_t cksumtype, char * cksum, size_t cksumlen); ARGUMENTS
Shishi * handle shishi handle as allocated by shishi_init(). Shishi_asn1 authenticator authenticator as allocated by shishi_authenticator(). int32_t cksumtype input checksum type to store in authenticator. char * cksum input checksum data to store in authenticator. size_t cksumlen size of input checksum data to store in authenticator. DESCRIPTION
Store checksum value in authenticator. A checksum is usually created by calling shishi_checksum() on some application specific data using the key from the ticket that is being used. To save time, you may want to use shishi_authenticator_add_cksum() instead, which calculates the checksum and calls this function in one step. RETURN VALUE
Returns SHISHI_OK iff successful. REPORTING BUGS
Report bugs to <bug-shishi@gnu.org>. COPYRIGHT
Copyright (C) 2002-2010 Simon Josefsson. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. SEE ALSO
The full documentation for shishi is maintained as a Texinfo manual. If the info and shishi programs are properly installed at your site, the command info shishi should give you access to the complete manual. shishi 1.0.1 shishi_authenticator_set_cksum(3)