From: Patrick McHardy <kaber@trash.net>
To: Amin Azez <azez@ufomechanic.net>
Cc: Harald Welte <laforge@netfilter.org>,
Netfilter Development Mailinglist
<netfilter-devel@lists.netfilter.org>,
Pablo Neira <pablo@eurodev.net>
Subject: Re: [RFC] alternative to conntrack ID
Date: Fri, 06 May 2005 17:16:22 +0200 [thread overview]
Message-ID: <427B8A46.8090006@trash.net> (raw)
In-Reply-To: <4278B98E.7090707@ufomechanic.net>
Amin Azez wrote:
> Patrick McHardy wrote:
>
>> Why is that better than a unique ID? It needs space as well, but can't
>> be used to identify the conntrack without further information.
>>
>>
> There isn't the problems of having to generate a unique id, or the worry
> of it finally wrapping every few years as we don't pretend it is unique.
> However, combined with either tuple it forms a unique id that wraps only
> when the calendar does.
Wrapping is not a problem with a 64bit id. One thing I'm worried about
with using a timestamp is that it might not be of high enough precision
with very fast CPU and network to uniquely identify each connection.
> Further, as pointed out by Patrick Schaaf, start time has the potential
> to be more useful than a unique id in filtering
Agreed, but it is secondary to solving the problem.
Regards
Patrick
next prev parent reply other threads:[~2005-05-06 15:16 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-27 23:55 [RFC] [PATCH] ctnetlink updates Pablo Neira
2005-04-01 6:59 ` Harald Welte
2005-04-03 18:01 ` Patrick McHardy
2005-04-06 18:08 ` Pablo Neira
2005-04-17 15:07 ` Patrick McHardy
2005-04-29 7:14 ` Jozsef Kadlecsik
2005-04-29 8:02 ` Harald Welte
2005-05-04 9:18 ` [RFC] alternative to conntrack ID Amin Azez
2005-05-04 9:32 ` Patrick Schaaf
2005-05-04 11:30 ` Patrick McHardy
2005-05-04 12:01 ` Amin Azez
2005-05-06 15:16 ` Patrick McHardy [this message]
2005-05-07 20:36 ` Marcus Sundberg
2005-05-07 22:18 ` Patrick McHardy
2005-05-07 22:32 ` Marcus Sundberg
2005-05-09 14:17 ` KOVACS Krisztian
2005-05-09 15:08 ` Amin Azez
2005-05-10 6:49 ` Harald Welte
2005-05-17 16:12 ` Amin Azez
2005-05-17 20:17 ` Patrick McHardy
2005-05-18 7:24 ` Amin Azez
2005-05-18 9:30 ` Jozsef Kadlecsik
2005-06-04 23:52 ` Pablo Neira
2005-06-05 1:02 ` Pablo Neira
2005-06-06 8:48 ` Jozsef Kadlecsik
2005-06-09 12:52 ` Pablo Neira
2005-06-09 13:00 ` Pablo Neira
2005-06-09 13:34 ` Jozsef Kadlecsik
2005-06-10 10:21 ` Pablo Neira
2005-06-13 7:41 ` Jozsef Kadlecsik
2005-06-14 2:30 ` Pablo Neira
2005-06-14 2:42 ` Patrick McHardy
2005-06-15 2:41 ` Pablo Neira
2005-06-20 16:04 ` Amin Azez
2005-06-20 16:12 ` Patrick McHardy
2005-06-22 9:09 ` Amin Azez
2005-06-22 9:30 ` Oscar Mechanic
2005-06-22 17:23 ` Patrick McHardy
2005-07-11 5:41 ` Harald Welte
2005-07-11 7:47 ` Patrick McHardy
2005-07-11 9:50 ` Pablo Neira
2005-06-06 8:17 ` Jozsef Kadlecsik
2005-05-18 6:45 ` Jozsef Kadlecsik
2005-05-18 7:08 ` Amin Azez
2005-05-18 7:17 ` Jozsef Kadlecsik
2005-05-11 8:43 ` Amin Azez
2005-05-01 23:49 ` [RFC] [PATCH] ctnetlink updates Pablo Neira
2005-05-02 10:47 ` Harald Welte
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