Morning,
Please excuse my lack of knowledge in this.

The sflowtool -t is a binary output.

I don't know what the tcpdump stream is supposed to be.

Here is a link that may help explain it:
http://www.tcpdump.org/tcpdump_man.html

I used `./sflowtool -t | tcpdump -vvv -r -` to display the sflow  
output, and it apapears to be standard tcpdump outout with no  
payload, as was expected.


On Oct 15, 2008, at 05:56 EDT, Paolo Lucente wrote:

> Hi Joe,
>
> can you please show an example of what's the output of the  
> "sflowtool -t"
> command, which makes snort happy? That can help addressing your  
> question.
>
> Also, do you know which sFlow fields are relevant to snort - this  
> is just
> in case sfacctd is unable to produce a dump as detailed as  
> sflowtool does?
> I'm anyway guessing that the only way would be through the "print"  
> plugin
> and a few sed/awk around it.
>
> Cheers,
> Paolo
>
> On Tue, Oct 14, 2008 at 05:17:34PM -0400, Joe Carvalho wrote:
>> Hello,
>> I'd like to have sfacctd provide a tcpdump-style output suitable for
>> feeding into snort.
>>
>> I've been doing this, but I'd like to replace sflowtool with sfacctd/
>> pmacctd.
>> % sflowtool -t | snort -Afull -r - -c snort.conf
>>
>> tnx.
>> --joe
>
>
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> http://www.pmacct.net/#mailinglists


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