Hi,

--On Donnerstag, 6. Juni 2002 17:06 +0100 Antony Stone 
<[EMAIL PROTECTED]> wrote:

> On Thursday 06 June 2002 4:41 pm, Erik Pagel wrote:
>
>> iptables -N ftp
>> iptables -A ftp -p tcp --dport 20:21 -o $I_EXTERN -j ACCEPT
>> iptables -A ftp -p tcp --sport 20:21 -i $I_EXTERN -m state --state
>> ESTABLISHED,RELATED -j ACCEPT
>> iptables -A ftp -p tcp --dport 20:21 -i $I_EXTERN -m state --state
>> NEW,INVALID -j LOG --log-level warning --log-prefix "DROP:FTP Incomming"
>> iptables -A ftp -p tcp --dport 20:21 -i $I_EXTERN -m state --state
>> NEW,INVALID -j DROP
>
>> iptables -A INPUT   -j ftp
>> iptables -A OUTPUT  -j ftp
>> iptables -A FORWARD -j ftp
>
> That is a very strange set of rules to try applying to all three of
> INPUT,  FORWARD and OUTPUT chains !
>
> Please can you tell us whether you are trying to ftp from this machine
> with  the netfilter rules on, or is the netfilter machine acting as a
> router  between the ftp client and server ?

Both, I want so send files from this machine and this machine also act as 
router for my internal network.
That the reason why I apply the rules to all three chains.

>
> Antony.
>
bye Erik

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