hey guys whats up.. i just got a quick question.. i currently have a linksys wired router but iam going to be buying a notebook soon so i will need to add a wireless router.. but i dont understand how this will work..

when i link the cat cable from my old router to my new router.. does the new one obtain the same IP for the router as the old one? or does it get updated?. Example OLD ROUTER is X.X.X.1 and NEW ROUTER will become X.X.X.2 ?

So is there a reason you are using 2 routers? Most wireless routers have ports to plug in wired connections...

Agreed, why complicate it, almost every home router has switch ports on the front.

oh the reason i have more then 1 router is because i have more then 4 Pc's in the house lol

so would i have to change the IP's manually on them and change the starting Ip range it gives to Pc's?

My linksys router does DHCP... If I were going to do more than 4 PCs I would get a switch so that I don't have to mess with a second router configuration and the problems assocated with trying to talk over a router.

Back to your original question of what would happen if you plugged your new one into your old one...
First question do you have DHCP on the first router? If you do and you have your second router configured to get a DHCP address instead of set with a static IP then it would have whatever the old one assigns. If it is static it is whatever you choose. Problem 2 with the dual router setup is how are your workstations on the old router going to talk to the workstations on the new router? Most of the Linksys routers I've delt with use NAT so the second router is going to pick up an address like 192.168.1.4 and most likely will block any attempts to contact workstations because of the firewall. On my linksys you could turn it off but I think you would be better off to keep it simple and do wireless router to a hub or switch and everyone should talk without you pulling your hair out trying set up static routing.