Re: CONNMARK target

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On Wed, Oct 15, 2008 at 9:51 AM, Eric Leblond <eric@xxxxxx> wrote:
> On Wednesday, 2008 October 15 at  9:49:01 +0200, okahei@xxxxxxxxx wrote:
>> On Mon, Oct 13, 2008 at 5:10 PM, Eric Leblond <eric@xxxxxx> wrote:
>> > Hi,
>> >
>> > On Sunday, 2008 October 12 at 19:12:58 +0200, okahei@xxxxxxxxx wrote:
>> >> Hello list.
>> >>
>> >> I've got a question with CONNMARK target.
>> >>
>> >> It's possible to mark whole connection playing with this parameter ?
>> >>
>> >> What i want is when a packet arrives to port 6900 UDP of firewall,
>> >> mark it with 0x99, and when the response packet arrives again from DMZ
>> >> interface of the firewall, are marked again with 0x99.
>> >
>> > You can get some information a connmark on the following page :
>> >        http://home.regit.org/?page_id=7
>> >
>> > Basically, what you want to add to your ruleset is :
>> > iptables -A POSTROUTING -t mangle -j CONNMARK --restore-mark
>> > iptables -A POSTROUTING -t mangle -j CONNMARK --save-mark
>> >
>> > First one restore mark when packet arrive (It put connection mark to the
>> > pt mark.. Second one save packet mark to connection mark to be able
>> > to restore it later (with --restore-mark).
>> >
>> > BR,
>> > --
>> > Eric Leblond
>> > INL: http://www.inl.fr/
>> > NuFW: http://www.nufw.org/
>> >
>>
>> Hello List.
>>
>> I'm in doubt with the /proc/net/ip_conntrack file, becouse i am
>> marking packets with 0x87
>
> 0x87 is in hexadecimal, this is equal to 135 in decimal ;)
>
> Don't use '0x' prefix if you want to use decimal integer.
>
> BR,
> --
> Eric Leblond
> INL: http://www.inl.fr/
> NuFW: http://www.nufw.org/
>

Thanks for quick reply

Regards.
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