From: Brad Fisher <brad@info-link.net>
To: Borja Pacheco <bpacheco@acisa.es>
Cc: Netfilter-Devel <netfilter-devel@lists.netfilter.org>
Subject: Re: issue with the quota match
Date: Tue, 29 Mar 2005 09:53:32 -0600 [thread overview]
Message-ID: <424979FC.8020005@info-link.net> (raw)
In-Reply-To: <42491710.4090400@eurodev.net>
Pablo Neira wrote:
> Borja Pacheco wrote:
>
>> In a first moment I insert a rule with an initial quota of 1000 bytes...
>> 0 0 ACCEPT all -- * * 0.0.0.0/0
>> 0.0.0.0/0 quota: 1000 bytes
>>
>> Next, I generate packets and here it's the amazing result....
>> 8 448 ACCEPT all -- * * 0.0.0.0/0
>> 0.0.0.0/0 quota: 712 bytes
>>
>> Theoretically, 1000 assigned bytes minus total traffic generated (448
>> bytes), must originate the remaining quota the rule has: 552. BUT IT
>> SAYS 712 BYTES!!!!!
>
>
> quota doesn't count the ip headers (20 bytes). Some maths:
>
> 8 packets x 20 bytes = 160 bytes
> 552 + 160 = 712 bytes
>
> --
> Pablo
>
>
> !DSPAM:42491732223341143723889!
>
I had submitted a patch at one time that added an option to the quota
match to tell it to count the headers... If anyone's interested I could
post it again (or you could try searching the list archive), but it is
probably a little dated at the moment since I haven't done any work on
it in quite a while...
-Brad
next prev parent reply other threads:[~2005-03-29 15:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-28 17:14 issue with the quota match Borja Pacheco
2005-03-29 8:51 ` Pablo Neira
2005-03-29 15:53 ` Brad Fisher [this message]
2005-04-03 18:20 ` Patrick McHardy
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