Help Please with IP Addressing On Home Network

[Farrar]

I have plans to reconfigure my home network and would like a little advice. First, here is my current configuration:

I have a DSL modem attached to a Netgear Wireless router which the 3 laptops in the household as well as my Dell Desktop access. I had problems setting the router up to begin with and the Netgear tech said it was because both the router and modem had the same IP addy so he had me make several changes. Everything works FINE BUT I would like to get everything on the same subnet, specifically, 192.168.1.XXX.

Subnet mask on everything, is of course, 255.255.255.0

DSL modem is 192.168.1.1

Netgear Router shows TWO IP addys: 192.168.1.47 and 192.168.20.1 NOTE: The 192.168.1.47 IP times out if pinged. I also have a trial version of Network Magic running which shows the router’s INTERNET IP to be 192.168.1.47 and simply it’s IP addy as 192.168.20.1.

My desktop and all three laptops are on the 192.168.20.xxx subnet. And all show the DHCP and DNS server{s} to be 192.168.20.1. My desktop has a cable ran from NIC card to the Netgear router.

If I go into my Westell DSL modem properties sheet, I see that it is set to “Private LAN” with a DHCP range of 192.168.1 to 192.168.1.47. It also has check marks in the two boxes which are, “Private LAN enable” and “Private LAN DHCP enable”. It also states that I have “Discovered Device” on the LAN {My Netgear router} located at IP addy 192.168.1.47 AND that it is inactive.

My plan, is to leave the modem set to 192.168.1.1, subnet mask 255.255.255.0. Then, configure all 3 laptops with an IP address on the 192.168.1.xxx subnet.

Three questions:

1. Using the 192.168.1.xxx subnet and putting all three laptops on that subnet, what should I show the DHCP server to be?
2. What IP address should I give to the wireless router?
3. What should be the configuration of the Dell desktop which currently is connected to the Netgear router via CAT 5 cable?

Thanks!

Jeff Farrar