I have been reading through Rulz and this earlier post trying to get my blackhole/null route working with DNAT since my firewall rules were not (as explained by Rulz). From the latter link, BAlfson said the following is a valid DNAT configuration: …

Hi all, I'm trying to do MAC filtering for a client. However, I'm not sure if what they're asking is possible. They want to give me a list of MAC addresses to whitelist to the Internet, then blacklist any MAC address not on that list. I can make firewall…