Any networking gurus out there? Help!

Hello, all!

I'm trying to set up my network to include my brand new 12" rev. C Powerbook, but I'm racking my brain trying to figure out how to do it right. Maybe you guys can help!

Currently, I have a cable modem connected to a wired, DHCP-enabled D-Link 4-port router. Of these 4 ports, 3 are currently connected to computers. I was thinking of connecting the final free port to my new Netgear wireless G router. Basically, I want to add 2 wireless laptops to my network - I'd like them to be on the same subnet, so they can access shares on the 3 wired computers, as well as access the internet.

Is this possible? I've read that I should disable DHCP on the wireless router, give it a different default IP, and connect it to the wired router via a LAN port, not a WAN port. What I'm wondering is will this setup allow me to have 5 computers connected to the 4-port router? Will the DHCP on the wired router simply keep assigning IPs?

Thanks a bunch! My main reason for doing things this way is that I'd like to be able to simply yank the network cable to the new wireless router when I'm not around - that way, I don't have to worry about security. When I'm home and I want to get online fast, all I have to do is plug in the network cable.

What do you guys think?

 

1. Check!
2. Check!
3. Check!

+ 4. I set up WPA on the router as well. Just to be extra safe!

 

I was thinking about doing this originally, but then I read about how easily a MAC address can be spoofed.

Also, like I said before, this setup allows me to simply yank the connection to the wireless segment of my network when I'm not around. If I wanted to kill my wireless with my network on a single wired/wireless router, I'd have to reboot the router every time I wanted to disable/enable wireless, which would be a major pain.

Yanking the network connection is a simple, primitive security measure, but at least I'm sure it's 100% secure!