Re: ip_queue question

["Will Metcalf" <william.metcalf () gmail com>]

You can increase the queue length, but if you are queueing that many packets
I think you may be sending more traffic to snort than it can handle.  Either
way you can increase the queue length by tweaking

/proc/sys/net/ipv4/ip_queue_maxlen

Regards,

Will




On 3/23/07, Josep Román <josep.roman () gmail com> wrote:
> Hi there,
>
> Using snort 2.6.1.3 in inline mode I'm getting the following messages in
> one
> of the systems:
>
> ...
> ip_queue: full at 1024 entries, dropping packets(s). Dropped: 10
> ip_queue: full at 1024 entries, dropping packets(s). Dropped: 11
> ip_queue: full at 1024 entries, dropping packets(s). Dropped: 12
> ...
>
> What does exactly mean? From what I've found so far, it seems the ip_queue
> detects the user's space kernel is full (i.e. Snort is not handling with
> the
> whole traffic) and therefore, some packets are discarded.
>
> Could anyone please confirm that and also shed some light on how to
> prevent
> that?
>
> TIA,
>
> Josep
>
>
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