How do I properly set up my IP Tables for network bound traffic

I now have a virtual server that is set to the internal ip address of the machine and to port 81

With IPTables on I am unable to access that address.
With Iptables off however I am easily able to access ip:81

The computer is connected to an internal lan network where it’s server applications are not opened to the outside world. (Intentionally) With IPtables on, I am unable to gain access to the web site front ends as iptables and I can’t seem to get along.

I’ve tried the following things and have not gained a solution yet.

INCOMING PACKETS

Accept If protocol is TCP and destination port is 81 and input physical interface is eth0 and output physical interface is eth0
Accept If protocol is TCP and destination port is 81 and output physical interface is eth0

-eth0 is of course my only lan card on this computer and the only connection set up.

Any help for this iptables newbie would be greatly appreciated.

Hmm this morning I had the thought that I could clone the 10000 iptable rule but that doesn’t seem to work either.

restarting IPTables…

YAY!!!

It works!