From: Henrik Nordstrom <hno@marasystems.com>
To: don-nf@isis.cs3-inc.com (Don Cohen), Patrick Schaaf <bof@bof.de>
Cc: netfilter-devel@lists.samba.org
Subject: Re: conntrack performance/DoS formula
Date: Mon, 1 Jul 2002 10:07:25 +0200 [thread overview]
Message-ID: <200207011007.25108.hno@marasystems.com> (raw)
In-Reply-To: <15647.24217.324807.354846@isis.cs3-inc.com>
Don Cohen wrote:
> On a related subject, I'm worried that UNREPLIED might not mean
> what I think it does. Your data contains things like:
> tcp 6 387070 ESTABLISHED src=9.163.211.64 dst=165.130.71.38 sport=3228
> dport=1301 [UNREPLIED] src=165.130.71.38 dst=9.163.211.64 sport=1301
> dport=3228 use=1
> How can one half of the connection be established while the other half
> is unreplied?
The ESTABLISHED indicates the TCP state, UNREPLIED indicates the conntrack
state. This is a TCP session that has only seen ACK in one direction, no
packets in the other.
Almost related note: The connection is not ASSURED.
Regards
Henrik
next prev parent reply other threads:[~2002-07-01 8:07 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-27 20:46 conntrack performance/DoS formula Don Cohen
2002-06-28 6:23 ` Patrick Schaaf
2002-06-28 17:53 ` Don Cohen
2002-06-28 18:36 ` Patrick Schaaf
2002-06-28 19:03 ` Don Cohen
2002-06-28 19:35 ` Patrick Schaaf
2002-06-28 19:39 ` Patrick Schaaf
2002-06-28 21:10 ` Don Cohen
2002-06-28 21:28 ` Patrick Schaaf
2002-06-28 21:49 ` Don Cohen
2002-06-28 22:30 ` Don Cohen
2002-06-29 9:03 ` Patrick Schaaf
2002-06-29 16:48 ` Don Cohen
2002-06-29 17:22 ` Patrick Schaaf
2002-07-05 13:47 ` Harald Welte
2002-06-29 17:33 ` Patrick Schaaf
2002-06-29 9:29 ` Patrick Schaaf
2002-06-29 12:07 ` Patrick Schaaf
2002-06-29 12:34 ` Patrick Schaaf
2002-06-30 8:31 ` Patrick Schaaf
2002-06-30 19:40 ` Don Cohen
2002-07-01 8:07 ` Henrik Nordstrom [this message]
2002-07-01 17:49 ` Don Cohen
2002-07-02 7:58 ` Henrik Nordstrom
[not found] ` <15652.38084.704660.234319@isis.cs3-inc.com>
2002-07-04 21:53 ` Henrik Nordstrom
2002-07-05 7:08 ` Don Cohen
2002-07-05 11:41 ` Henrik Nordstrom
2002-07-06 2:49 ` Don Cohen
2002-07-02 14:55 ` Harald Welte
2002-07-02 14:40 ` Harald Welte
2002-07-02 16:32 ` Patrick Schaaf
2002-07-02 16:35 ` Patrick Schaaf
2002-07-02 16:53 ` Henrik Nordstrom
2002-07-02 17:48 ` Don Cohen
2002-07-02 18:31 ` Patrick Schaaf
2002-07-02 21:52 ` cttest-0.1 Patrick Schaaf
2002-07-03 4:15 ` cttest-0.1 Joakim Axelsson
2002-07-05 15:37 ` cttest-0.1 Martin Josefsson
2002-07-05 16:10 ` cttest-0.1 Joakim Axelsson
2002-07-05 16:54 ` cttest-0.1 Patrick Schaaf
2002-07-05 16:53 ` cttest-0.1 Joakim Axelsson
2002-07-06 6:10 ` cttest-0.1 Andrew Smith
2002-07-06 7:12 ` cttest-0.1 Patrick Schaaf
2002-07-06 15:23 ` cttest-0.1 Patrick Schaaf
2002-07-06 21:14 ` cttest-0.1 Joakim Axelsson
2002-07-06 22:41 ` cttest-0.1 Joakim Axelsson
2002-07-06 23:16 ` cttest-0.1 Joakim Axelsson
2002-07-07 2:30 ` cttest-0.1 Svenning Sorensen
2002-07-07 4:23 ` cttest-0.1 Joakim Axelsson
2002-07-07 5:46 ` cttest-0.1 Joakim Axelsson
2002-07-07 11:00 ` cttest-0.1 Henrik Nordstrom
2002-07-06 22:54 ` cttest-0.1 Joakim Axelsson
2002-07-02 14:38 ` conntrack performance/DoS formula Harald Welte
[not found] <20020701121404.B78724512@lists.samba.org>
2002-07-01 21:30 ` Don Cohen
2002-07-02 6:05 ` Patrick Schaaf
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