Re: Question about searching in packet headers

["Joel Esler \(jesler\) via Snort-sigs" <snort-sigs () lists snort org>]

So you’ll need to use some of the non-payload options.  What are you trying to look for?

> On Oct 17, 2020, at 2:46 PM, Fedor Niskov via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> Hello, excuse me, I have a question about Snort rules: can I do search in packet headers? I know about the 'content' 
> option, but it performs searching only in payload; however, I'd like to check presence of some byte sequences in 
> headers.
>
> It would be useful to search in headers; for instance, I need to check some TCP options, but Snort non-payload rule 
> options don't support it; if I could search for specific bytes in TCP header, I would be able to perform these checks.
>
> (Fedor Niskov)
>
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