Net::RawIP 
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 Net::RawIP

Hi!

Is it possible to specify ethernet frame checksum using RawIP module?
I'm able to specify source and destination mac addresses, but cannot
specify FCS checksum. Does anybody else know a way to generate otherwise
valid ethernet packet except the FCS being faulty?

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Wed, 12 Dec 2001 03:00:00 GMT  
 Net::RawIP

Quote:

> Hi!

> Is it possible to specify ethernet frame checksum using RawIP module?
> I'm able to specify source and destination mac addresses, but cannot
> specify FCS checksum. Does anybody else know a way to generate otherwise
> valid ethernet packet except the FCS being faulty?

Probably not, unless you can get your hands on an ethernet protocol
analyser.  The FCS field is usually generated and verified in
hardware and not under the control of the operating system.

Tim.

--
Tim Potter, System Admin/Programmer              "Disco Stu doesn't advertise"
Advanced Computational Systems CRC, RSISE Bldg Australian National University,
Canberra 0200, AUSTRALIA Ph: +61 2 62798813 Fax: +61 2 62798602



Sun, 16 Dec 2001 03:00:00 GMT  
 
 [ 2 post ] 

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