I have a working gateway that simply masquerades my private net
to the WAN. My gateway is called gateway and has two NICs, eth0
is the private net, eth1 is a Cicso router on the WAN (which has
Internet access protected by a firewall). I have compiled into
my kernel IP Forwarding, firewalling, masquerading, etc.--all
according to the IP-Masquerading mini-HOWTO. It works, too. My
browser, my telnet sessions, etc. are peroperly
masqueraded--except FTP.
I'm using RHL4.2 with a 2.0.32 kernel on my gateway. If I make
an FTP connection (ftp://ftp.netscape.com, for example) in
Netscape Navigator on an NT/95 box, everything works fine. If I
use the FTP program at the command line or a Bash shell from my
private net, it hangs on directory listings. If I make the same
FTP connection from my gateway, all FTP functions work fine. Why
can't my gateway properly route directory and file traffic to my
private net when using a command line FTP util or FTP on another
linux box?
Here are the command I execute to set up my masquerading
rules; I don't care about security:
/sbin/depmod -a
/sbin/modprobe ip_masq_ftp
/sbin/ipfwadm -F -f
/sbin/ipfwadm -I -f
/sbin/ipfwadm -O -f
/sbin/ipfwadm -F -p accept
/sbin/ipfwadm -F -p m
If you can help me, I would appreciate it.
Kevin
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