Can't get NAT to work right (venturing into uncharted territory)

Hi,
It's been awhile since my last post and a lot of things have changed. I moved in with my girlfriend and found myself in a networking situation. MY problem is that im trying to get my home network up and running and i seem to have come to an stand still.

The Info:

Network:
Imac G5 (my computer) ip from isp
P3 running WinXP Pro (girlfriends computer and fileserver) ip from isp
Moded Xbox with media server ip thrue dhcp from router

The router is a roadrunner 44, that should be capable of NAT

The problem
As you probably guessed from my explanation of the network the computers are on difrrent networks, i can't get my xbox to see my network shares and so on. Now I can get my router to recieve an ip from the isp 62.x.x.x and get the computers (imac,p3,xbox) to recieve an ip from the router 10.x.x.x but i cant get the computer to accsess the internet

OR

I can get the computers to receive an ip from the ISP 62.x.x.x and be abale to acsess the internet. This sadly does not allow the to be on the same network as i would like.

Questions

How can i get all the computers on the same network while still having acsess to the net?
Do i have to buy additional hardware?

at the moment I'm using google and reading up on dhcp, tcp/ip and NAT. I hope someone can help.

On a sidenote Merry christmas (i know I'm late but anyhow)

Put a Linksys router in....
Easy and usually headache free....
I never heard of Roadrunner giving out routers
There are cable modems with a router built in but
the router portion of the cable modem is (usually) controled by the cable company
If cost is a factor.... better get rid of your cable modem
Linksys routers usually start at $30 to $35

Quote:

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Originally posted here by Highlander
Put a Linksys router in....
Easy and usually headache free....
I never heard of Roadrunner giving out routers
There are cable modems with a router built in but
the router portion of the cable modem is (usually) controled by the cable company
If cost is a factor.... better get rid of your cable modem
Linksys routers usually start at $30 to $35

---

I agree. I use linksys or Belkin. Get one with wireless capability for the future.

I've used both of these brands with little problems in both the corporate and home environment.

I've had minor problems with iBlitzz. I have to cycle the power on these occasionally.

All work out of the box with little or no configuration.

PUT a HUB or a ROUTER

allright,

First off thanks for the replys. The router in question turned out to be a switch/router/adsl modem all rolled in to one. I've been reading up on all available information and it turns out all i had to do to get it to work was some minor modifications to the roadrunner itself. Evrything works great. And i have one port to spare (let's see how long that lasts :p )

I manualy inserted the ip's and the gateway adress into the computers and everything started working. It seems i was a little to quick to ask questions :rolleyes: The best part is i didn't need any additional hardware. The roadrunner satisfys my needs for now. We'll see what the future holds in store.

Offtopic: almost 20 000 dead in asia holy f()hk!