Ftp behind firewall/nat

[Thomas Foster]

You also might want to pass and redirect tcp port 20 (ftp data).. this seems 
to work very well for me..  also.. what FTP client are you using?  You might 
want to use PASV FTP options

T
----- Original Message ----- 
From: "eric wyzerski" <ericwyzerski at hotmail.com>
To: <freebsd-questions at freebsd.org>
Sent: Monday, January 31, 2005 12:11 PM
Subject: Ftp behind firewall/nat


> Hi,
>
> For a whole day I tried to make an ftp who is behind the firewall to work 
> but Im not able. My ipf rules are:
>
> pass in quick from any to any
> pass out quick from any to any
>
> So it is not a ipf problem. My ipnat rules are:
>
> map rl0 10.0.0.0/8 -> 0/32
>
> rdr rl0 X.X.X.X/32 port 21 -> 10.1.1.6 port 21 tcp
>
> where X.X.X.X is my external IP, rl0 my external interface and 10.1.1.6 
> the ftp server. I am able to login and when I do the dir command its 
> freeze. I have do tcpdump and I see the SYN packet goes but its never get 
> answer. I really need help/advise
> Thank you and please CC me the answer because im not in the list
> Eric
>
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