When I see the official documentation of ipfw or the man pages it seems that it is sometimes incomplete. Specifically, there are a lot of options like,
etc., which can be found in many online guides but **not** in the docs. They're even discussed in the lists.
So I would like to understand if these are unofficial or undocumented options, and if they might be arbitrarily removed at some point in the future since they're not formally documented. More importantly, is there a single comprehensive documentation source for ipfw, short of grokking the source code?
Not being too experienced with it, I do not know what else is missing in the ipfw docs, but I am happy to add some notes about the few things that I found missing, based on what I learned from the other guides on the internet. Just let me know where to make/submit the changes.
So it seems that the options which are left out in the official docs are actually easily found in /etc/rc.firewall, which also happens to have the relevant explanations in the comments.