Uh, that seems a little rude. Yes, I KNOW it is out of date, but simply installing Fedora 19 is by NO means an option. This box is in service. Besides, what does it being a Fedora 13 box have to do with interpreting this iptables commmand? Are you saying that if I have a question about our Fedora 2 box, I'll have to upgrade it before you'll help me?
I may be new to Linux Server administration, but I know you don't have to have the latest version of ANYTHING if what you have does the job. This box does the job it was built to do by the original admin, I just need to understand what that is. Interpreting this line is part of understanding how it firewalls a section of our network. Okay?
So you're saying it is "allowing that ip address" and I think I understand what you mean, you're deciphering the -d option. But what about the -i?
When I read it like a sentence, "If the destination of an incoming packet is 192.168.1.255/32, and it came in through interface 192.168.168.255, then accept it," that part about "through interface 192.168.168.255" still makes no sense to me. And what about the /32 on the destination broadcast address? Can you please explain further without instructing me to upgrade my server OS?