Thank you for your answer,

When you write -p tcp, iptables automatically adds -m tcp.
I looked at the kernel messages with dmesg but couldn't find any log about this.

Is there anybody successfully using the connlimit extension?

Hakan

----- Message from [EMAIL PROTECTED] ---------
    Tarih: Mon, 28 Apr 2008 17:37:10 +0100
      Kimden: John Haxby <[EMAIL PROTECTED]>
Cevap:"Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list"
<[email protected]>
 Konu: Re: [rhelv5-list] iptables unknown error with connlimit module
      Kime: "Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list"
<[email protected]>


Hakan VELIOGLU wrote:
Hi list,

Why the below iptables command always gives Unknown error. Is there anybody has
a solution.

[EMAIL PROTECTED] ~]# iptables -A INPUT -p tcp --syn --dport 80 -m connlimit
--connlimit-above 16 --connlimit-mask 24 -j REJECT
iptables: Unknown error 4294967295
[EMAIL PROTECTED] ~]#


"dmesg" will give you a more meaningful error message ... but in this
particular case you're using options for the tcp matching extension
without specifying the module.   You want

    iptables -A INPUT -p tcp -m tcp --syn --dport 80 ...

jch

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