Limit DHCP requests with iptables - problem: Router

[Michal Suchanek]

On 9 February 2011 10:32, Alex Bligh <alex at alex.org.uk> wrote:
>
>
> --On 9 February 2011 09:47:52 +0100 Michal Suchanek <hramrach at centrum.cz>
> wrote:
>
>>>> This is not possible when you want to match arbitrary part of the
>>>> packet,
>>>
>>> citation missing
>>>
>> iptables(8)
>
> search for the option "--u32"
>
I know it's there, as well as string. However, it cannot be used with
modules such as recent, or hashlimit which requires you to know the
pattern in advance and you cannot use iptables alone to determine the
ofending address.

Thanks

Michal