RE: FTP Forwarding

[Stewart Thompson <stewart.thompson@shaw.ca>]

Wasim:

	Put the following lines at the beginning of your script
	/sbin/insmod ip_conntrack_ftp
	/sbin/insmod ip_conntrack_ftp
	That is the path on my system. Do a which insmod to
make sure that is right for your system. I am not running 8.0 on
any of the systems I look after. Theoretically, the system should
load them when they are all referenced. However, I specifically load
all the ones I need in my firewall script. Also, see Rob's rule for
related and established. Also, if you want people to be able to
initiate FTP sessions from outside your network, you will also nee
to allow new connections. Hope that helps.

Stu.............


-----Original Message-----
From: netfilter-admin@lists.netfilter.org
[mailto:netfilter-admin@lists.netfilter.org]On Behalf Of Wasim Bashir
Sent: November 22, 2002 2:37 AM
To: stewart.thompson; 'Bantam'; 'netfilter'
Subject: RE: FTP Forwarding

Hi,

neither ip_nat_ftp and ip_conntrack_ftp are loaded, how do i load these ?

I'm using redhat 8.

Regards,

Wasim


-----Original Message-----
From: netfilter-admin@lists.netfilter.org
[mailto:netfilter-admin@lists.netfilter.org]On Behalf Of Stewart
Thompson
Sent: 22 November 2002 10:32
To: Bantam; netfilter
Subject: RE: FTP Forwarding


Wasim:

        If you do an lsmod, does it show  that
ip_nat_ftp and ip_conntrack_ftp are loaded?
They are required to make ftp work through nat.
Also what Linux Distro and Iptables are you using?

Stu.........



-----Original Message-----
From: netfilter-admin@lists.netfilter.org
[mailto:netfilter-admin@lists.netfilter.org]On Behalf Of Bantam
Sent: November 22, 2002 2:08 AM
To: netfilter
Subject: FTP Forwarding

Hi,

I've been trying to forward port 21 to an ftp server on another machine, IP
address  10.0.0.199.

eth1 - external (connected to the net)
eth0 - internal

/sbin/iptables -A FORWARD -p tcp -i eth1 --dport 21 -j ACCEPT
/sbin/iptables -A PREROUTING -t nat -p tcp -i eth1 --dport 21 -j DNAT --to
10.0.0.199:21

but can't get it to work..

any ideas ?

Thanks

Wasim