My main problem here is that I don't know the proper term used to define what I would like to do so its hard to search.
We have 1 Linksys WRT300N router and a big house. Halfway across the house there is barely and signal and staying connected is tough. We want to setup 2 more wireless repeater/extenders around the house so that access is available everywhere. The house is wired with CAT5 so ideally I would like to plug a wireless extender/repeater into the wired network, configure it with the exact same wireless settings as the main router (i believe i would need to use a different channel). So basically you can walk through the house, remain connected to the same SSID, and ip/subnet.
Is this possible? I have configured a few routers to use DD-WRT and Tomato but I just don't know if this setup is possible or what it is called.