question

I've been trying to get ipchains to redirect requests from one ip address
to my linux box. Here's what I've tried:

ipchains -A input -p tcp -s 140.198.33.14 -j REDIRECT -d 127.0.0.1 81

It worked once then I wrote it down and ran ipchains-save. After I
rebooted the computer I found out that it didn't save and wouldn't work
again.

I have just one machine connected directly to a Cisco DSL router.

Any ideas?

Thanks
Jim