I've got one machine set up as a firewall/masquerading machine. I have another behind it on my LAN that's set up to do web serving, ftp serving, etc. How can I use IPChains to forward all packets on the outside NIC (eg 220.127.116.11) on port 21 to the inside machine's (eg 192.168.2.254) port 21. It'd be really cool if you could give me the command with all the options attached :). Thanks.
ipchains -I forward ...(?)