Re: Small query

[Krishnamurthy Mayya <krishnamurthymayya () gmail com>]

Thanks Jeff..its working now...Could not figure out what was wrong earlier
though.

On Thu, May 10, 2012 at 12:11 AM, Jeff Morriss <jeff.morriss.ws () gmail com>wrote:

> Krishnamurthy Mayya wrote:
>
> > Hi all,
> >
> >  I have been facing problems with creating a packet in Centos 6.2. I have
> > a hex file which i am using as input to *text2pcap. *But, the output will
> > always say 0 packets read, 0 packtes wrote.
> >
> > Has anyone encountered the similar problem in Centos 6.2. How to overcome
> > this problem??
> > Thanks in advance.
>
> text2pcap is very particular about the format it is given.  Common
> mistakes (that I make anyway):
>
> - Are the line(s) prefixed with an offset of 000?  E.g.:
> 000 ab cd ef [...]
>
> - Is there a space at the end of the line(s)--at least after the hex dump
> stops?  This may have been fixed, but I don't remember in what version(s).
>
> Another thing to try is to use the 'od' command line options recommended
> in the man page on some random file to verify that text2pcap is really
> working, then try to manually apply that random file's 'od' output format
> to your file.
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