Ok, I realize this may have been asked already ad naseum, but searching the forum I still don't seem to find the answer to this question:
First, this is my current setup. My CORE has 2 network interfaces, ETH0: 192.168.1.100, and ETH1: 192.168.80.1.
ETH0 goes to my Belkin Wifi Router (192.168.1.1). ETH1 goes to a 10/100mbit switch. My M/D's all connect to this switch. My regular w/s's all use wifi to connect to the Belkin router, and DHCP is turned off here. DHCP is on of course on the CORE.
My concern is this: If I let my regular worstations get their DHCP address from the CORE (i.e. if they all get 192.168.80.x addresses) how will they get routed to the internet if the CORE happens to be not up. Because in reality the CORE is going to be down at times. Will they be unable to since the CORE isn't able to route the data? Since my wife gets pretty frustrated with me if the "internet" is down, I don't want to implement this networking topology.
What I've done instead is assign static IP addresses to my "regular computers" (which use wifi, i.e. 192.168.1.x ip addresses) which don't depend on the CORE being up to get to the internet. This seems to work fine except that if I want to see the COREs external IP address I have to disable the CORE firewall all-together. This doesn't really bother me since is inside the hardware firewall anyway. This allows me to install Windows Orbiters and other good stuff.
Is this the "correct" and accepted way of setting up this network scheme? Are there any firewall rules I can implement on the CORE instead of turning off the firewall? If I turn on DHCP on the Belkin broadband router will this cause problems on the internal network?