I have a block of 5 "real" IP addresses that Comcast gave us. I want to take one of those real IPs and translate it to an internal IP but only allow 4 TCP ports.
So: Real IP: 188.8.131.52 should go to 192.168.10.5 only allow ports 20, 21, 2009, 23.
Can someone tell me what I need to do? (I know replying RTFM would be an idea, but I will not be accepting that as an answer, lol)