From: Oguz Yilmaz <oguzyilmazlist@gmail.com>
To: netfilter@vger.kernel.org
Subject: Re: Packets stops traversing after nat PREROUTING
Date: Wed, 14 Apr 2010 23:09:33 +0300 [thread overview]
Message-ID: <p2zc4ada2161004141309gca3e0718z8a5fa1c0826bac3b@mail.gmail.com> (raw)
In-Reply-To: <alpine.LSU.2.01.1004141158560.9397@obet.zrqbmnf.qr>
Fortunately/unfortunately it was just because of ip_forward being 0. Thanks.
On Wed, Apr 14, 2010 at 12:59 PM, Jan Engelhardt <jengelh@medozas.de> wrote:
> On Wednesday 2010-04-14 10:30, Oguz Yilmaz wrote:
>
>>OS is CentOS 5.4
>>Kernel is 2.6.18-164
>>
>>Sometimes my firewall blocks the internet. When I inspect I have seen:
>>- nat PREROUTING counters increase
>>- filter FORWARD counters do not increase
>>- nat POSTROUTING counters do not increase
>>
>>According to the diagram of Engelhardt,
>>http://jengelh.medozas.de/images/nf-packet-flow.png, the problem
>>should be in Bridging Decision point or acc.to former diagrams in
>>Routing Decision point.
>>
>>I have tried to flush routing cache by "ip ro fl ca".
>>
>>Problem is recovered only after /etc/init.d/iptables stop / start
>>
>>I need further cues for deepen the problem, or exact reasons for
>>updating/recompling to newer kernel/netfilter.
>
> We need further cues like the ruleset.
>
prev parent reply other threads:[~2010-04-14 20:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-14 8:30 Packets stops traversing after nat PREROUTING Oguz Yilmaz
2010-04-14 9:59 ` Jan Engelhardt
2010-04-14 20:09 ` Oguz Yilmaz [this message]
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