Hi Jeremy

> On 05 Apr 2016, at 19:43, Jeremy Ashton <[email protected]> wrote:
> 
> I noticed the following arguments for n2disk but could not find documentation 
> on them:
> 
> [—packet-slicing|-0] <header level>          | Slice packet after the 
> specified header.

This can be used to save only a portion of the captured packet, you should 
specify the max header level you want to save (e.g. --packet-slicing 3 will 
save a portion of the packet up to the IP header).

> [—fast-filter|-F] <filter>                   | Faster replacement for BPF 
> ingress packet filter.

Please take a look at Appendix B of the User’s Guide at 
http://www.ntop.org/wp-content/uploads/2011/08/n2disk-UsersGuide1.pdf

> [--archive-directory|-O] <directory>          | Directory where dump files 
> will be archived (slower
>                                               | disks). The -a option is 
> overwritten when using it.

This can be used to move pcap files to another storage instead of deleting them 
when the --max-num-files x --max-nested-dirs limit is reached and n2disk starts 
overwriting the oldest files.

Alfredo

> 
> I wonder if someone might be able to shed some light on these features.
> 
> Thanks.
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