Hello,
I am not sure what happened or when. I set up IP Masquerade on a Linux
Box (slakware 2.0.30) and had telnet, FTP and HTTP working from a number
of machines behind the linux machine. For some reason, outgoing FTP does
not work anymore. To make matters worse, I am so new to linux, that I
don't know where to start looking. I have set up a minimum system and did
not intentionally filter any packets when set things up.
After setting up eth0 & eth1, I set up for masqurade with:
echo "1" /proc/sys/net/ipv4/ip_forward
ipfwadm -F -a m -S 192.168.200.0/24 -D 0.0.0.0/0
Here is a typical attempt to use FTP from my internal system to a system
elseware on the internet. If I use a dialup connection from the same
machine I have no problems.
----------------------------------------------------------------------
Name (brentwoodlake): brentwoodlake
331 Password required for brentwoodlake
Password: .........
230 User brentwoodlake logged in. Access restrictions apply. ftp> ls
500 Illegal PORT Command
ftp> ls
500 Illegal PORT Command
ftp> cd ..
250 CWD command successful.
ftp> ls
500 Illegal PORT Command
ftp>
------------------------------------------------------------------------
The login works, but after that I can't *do* anything. Other systems
complain about the PORT argument being wrong.
Thanks in advance,
Mark Stamos
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