I have a problem here where I have 2 DLink routers and a switch. The wireless router is connected to my cable modem and the switch is on port 1 of the wireless router. Then the regular router is connected to the switch. Now the reason I want to do this is because my wireless router has MAC filtering for wired and wireless MAC addresses. I troubleshoot a lot of computers from different people. So in order for me to get them on the network and onto the Internet I have to go into my wireless router's web interface configure the router to accept that MAC address and then take it off later. Now this may not seem bad for like 1 or 2 computers every so often but I do quite a few in a short period. So what I wanted to do was use the WAN's MAC address from the regular router to be a "universal" MAC address so to speak so that any PC I connect to the regular router doesn't have to go through the authorization process. I did the following config and the regular router gets an IP and configures itself properly since I added it's MAC to the list on the wireless router. The PC connects to the regular router but does not connect to the Internet. So I guess my question is... is this possible? Even with some sacrifice (e.g. can't see other pc's on the wireless router network)? It made sense on paper and what I know about routers but maybe there is something I'm not aware of.

Personally, I would disable the MAC address "security" feature of the wireless router. It's not much security considering you can spoof a MAC address in seconds flat. Removing that solves your problem.

My problem with that is that just anyone who can drive by can easily leech off my connection and this "anyone" can create havoc on my network if he/she doesn't really know much other than "Hey I can connect to this AP without a problem". Have to give them some sort of security without doing that. If you can spoof it then odds are this person is computer saavy and won't do dumb things on the network. Also you can spoof the MAC address however, I have a utility which tells me when there are two MAC addresses on the network... So far I have yet for anyone to do that. So ... no problem there.