From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tom van Leeuwen <tom.van.leeuwen@saasplaza.com>
Subject: Re: Problems with a forward rule
Date: Mon, 14 May 2012 09:24:39 +0200
Message-ID: <4FB0B337.4030208@saasplaza.com>
References: <CAEjQA5JVsMUizFWODGe+OT88owqbPU0=ZjtRugq6Eg8z1U3A=w@mail.gmail.com> <alpine.LNX.2.01.1205121746300.5922@frira.vanv.qr> <4FAECDBA.9030302@saasplaza.com> <CAEjQA5LAwmxTwAGWJH5A5Bs57h8=BSXWwiWegYmVKSM7ZtvtmA@mail.gmail.com> <4FB0A732.4070909@saasplaza.com> <CAEjQA5JZ55ku3DZuQ_Oe+Ne-85Lr_zMse7VudYAryO5aH8-JLQ@mail.gmail.com> <4FB0AE39.6040805@saasplaza.com> <CAEjQA5+kYHgcm3FGkz_AEhTa6ASv8w5sWQQxAOkszeDM3=ukZQ@mail.gmail.com>
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To: "C. L. Martinez" <carlopmart@gmail.com>
Cc: "netfilter@vger.kernel.org" <netfilter@vger.kernel.org>

On 05/14/2012 09:06 AM, C. L. Martinez wrote:
> On Mon, May 14, 2012 at 9:03 AM, Tom van Leeuwen
> <tom.van.leeuwen@saasplaza.com>  wrote:
>> So, when you do a ping from your host 172.24.50.3 to 1.1.1.x you will
>> probably see the counter increase for your rule (with restricted
>> destination).
>> Do "iptables -vnL FORWARD" to check.
>>
>> That rule is not the problem.
>>
>> What traffic are you sending that times out?
>> source ip, source port, destination ip, dest port, protocol?
>>
>> Your forward and postrouting rules look fine and should work
>>
>> Regards,
>> Tom
> My principal problems are with http, https and ssh. For example with a
> https connection:
>
> Chain FORWARD (policy DROP 48 packets, 2432 bytes)
>   pkts bytes target     prot opt in     out     source
> destination
>   4628 1901K ACCEPT     all  --  *      *       0.0.0.0/0
> 0.0.0.0/0           state RELATED,ESTABLISHED
>     12   746 ACCEPT     all  --  *      *       172.24.50.3
> 10.196.0.0/16       state NEW
>     42  2184 ACCEPT     tcp  --  *      *       172.24.50.3
> 195.76.69.66        tcp multiport dports 80,443 state NEW
>      1    52 ACCEPT     tcp  --  *      *       172.24.50.3
> 195.76.69.69        tcp dpt:443 state NEW
>     48  2432 LOG        all  --  *      *       0.0.0.0/0
> 0.0.0.0/0           LOG flags 0 level 4 prefix `IPT FORWARD packet
> died: '
>
> First packets goes well, but after few seconds all goes to "IPT
> FORWARD .." chain ...
So stuff is logged! Please show what is logged, cause that is the key!