From: Patrick McHardy <kaber@trash.net>
To: Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>
Cc: jengelh@computergmbh.de, netfilter-devel@lists.netfilter.org
Subject: Re: xt_connlimit 20070628 kernel
Date: Wed, 04 Jul 2007 16:52:58 +0200 [thread overview]
Message-ID: <468BB44A.8000401@trash.net> (raw)
In-Reply-To: <200707040855.l648tIBY005526@toshiba.co.jp>
Yasuyuki KOZAKAI wrote:
> Logically, IPv6 packets including (almost) mapped addresses can be
> assumed that they belong to IPv4 connection.
>
> But now I don't want to do that because mapped address can cause security
> issues.
>
> http://www.ietf.org/internet-drafts/draft-ietf-v6ops-security-overview-06.txt
> (2.2. IPv4-mapped IPv6 Addresses)
>
> These issues arise because IPv6 packets including mapped address are handled as
> IPv4 packets. So, to avoid new security issue we don't know yet, I think
> that it's safe not to merge IPv4 connection and IPv6 connection.
>
>
> P.S. That's the reason why hash function of nf_conntrack takes address family.
Thanks for the explanation Yasuyuki.
next prev parent reply other threads:[~2007-07-04 14:52 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-20 9:39 xt_connlimit 20070620_2 Jan Engelhardt
2007-06-20 17:21 ` Andrew Beverley
2007-06-22 11:14 ` Patrick McHardy
2007-06-22 11:36 ` Jan Engelhardt
2007-06-22 11:43 ` Patrick McHardy
2007-06-22 12:33 ` Jan Engelhardt
2007-06-22 12:42 ` Patrick McHardy
2007-06-22 13:22 ` Jan Engelhardt
2007-06-22 13:27 ` Patrick McHardy
2007-06-25 11:11 ` xt_connlimit 20070625 Jan Engelhardt
2007-06-25 11:41 ` Patrick McHardy
2007-06-25 11:45 ` Patrick McHardy
2007-06-25 12:36 ` Jan Engelhardt
2007-06-25 12:43 ` Patrick McHardy
2007-06-25 14:41 ` Jan Engelhardt
2007-06-25 14:46 ` Patrick McHardy
2007-06-25 15:01 ` Jan Engelhardt
2007-06-25 15:05 ` Patrick McHardy
2007-06-25 15:05 ` Patrick McHardy
2007-06-25 15:14 ` Jan Engelhardt
2007-06-28 19:23 ` Jan Engelhardt
2007-06-28 19:27 ` Patrick McHardy
2007-06-28 19:31 ` Jan Engelhardt
2007-06-28 19:33 ` Patrick McHardy
2007-06-28 19:48 ` Patrick McHardy
2007-06-28 19:51 ` xt_connlimit 20070628 Jan Engelhardt
2007-06-28 19:55 ` xt_connlimit 20070628 kernel Jan Engelhardt
2007-06-29 11:27 ` Patrick McHardy
2007-07-01 14:11 ` Jan Engelhardt
2007-07-02 12:27 ` Patrick McHardy
2007-07-02 15:38 ` Jan Engelhardt
2007-07-02 15:40 ` Patrick McHardy
2007-07-02 19:53 ` Jan Engelhardt
2007-07-03 11:14 ` Patrick McHardy
2007-07-03 11:31 ` Jan Engelhardt
2007-07-03 11:34 ` Patrick McHardy
2007-07-04 10:56 ` Jan Engelhardt
2007-07-04 14:52 ` Patrick McHardy
2007-07-04 15:11 ` Jan Engelhardt
2007-07-06 13:05 ` Patrick McHardy
2007-07-07 17:51 ` xt_connlimit 20070707 kernel Jan Engelhardt
2007-07-09 14:30 ` Patrick McHardy
2007-07-09 15:10 ` Jan Engelhardt
2007-07-09 15:20 ` Patrick McHardy
2007-07-09 15:29 ` Patrick McHardy
2007-07-09 15:32 ` Jan Engelhardt
2007-07-09 15:33 ` Patrick McHardy
2007-07-09 15:34 ` Patrick McHardy
2007-07-09 15:38 ` Jan Engelhardt
2007-07-09 15:43 ` Patrick McHardy
2007-07-13 14:18 ` Yasuyuki KOZAKAI
[not found] ` <200707131418.l6DEIudN010879@toshiba.co.jp>
2007-07-13 15:01 ` Jan Engelhardt
2007-07-13 15:03 ` Patrick McHardy
2007-07-13 15:13 ` Jan Engelhardt
2007-07-13 15:16 ` Patrick McHardy
2007-07-13 15:31 ` Jan Engelhardt
2007-07-13 15:42 ` Patrick McHardy
2007-07-13 16:08 ` Jan Engelhardt
2007-07-13 15:44 ` Yasuyuki KOZAKAI
[not found] ` <200707131544.l6DFivSf011446@toshiba.co.jp>
2007-07-13 16:09 ` Jan Engelhardt
2007-07-10 6:30 ` Yasuyuki KOZAKAI
2007-07-11 17:37 ` Jan Engelhardt
2007-07-11 18:04 ` Patrick McHardy
2007-07-11 18:18 ` Jan Engelhardt
2007-07-11 18:19 ` Jan Engelhardt
2007-07-11 18:25 ` Patrick McHardy
[not found] ` <200707100630.l6A6UBM1021597@toshiba.co.jp>
2007-07-11 13:23 ` Patrick McHardy
2007-07-04 8:55 ` xt_connlimit 20070628 kernel Yasuyuki KOZAKAI
2007-07-04 14:52 ` Patrick McHardy [this message]
2007-06-28 20:08 ` xt_connlimit 20070628 Jan Engelhardt
2007-06-25 18:51 ` xt_connlimit 20070620_2 Patrick McHardy
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