I wouldn't use it as a repeater, I'd use it as a wireless bridge. Basically you'll use your router as a wireless adapter for your PS3's ethernet port.
How to Extend Your Wi-Fi Range with Another Router Setting up DD-WRT as a wireless repeater. Keep in mind that some router models (especially older routers) do allow you to set up the router as a repeater natively, which means you don’t need to Using DD WRT on a Linksys WRT54G wifi router as a repeater Aug 29, 2012 Turn your Linksys E1500 into a Wireless Repeater | David To get wifi coverage in the yard and the whole house, I decided to re-purpose my Linksys E1500. Here’s what I did: First I installed the DD-WRT firmware and with it turned my router into a Wireless Repeater Bridge. A wireless repeater bridge essentially does two things: 1. It connects to your existing wifi network (xxx) as a client. 2.
How to Use a Linksys RE6350 AC1200 WiFi Repeater - Support.com
I have a Linksys WRT54Gx router with DD-WRT software working fine. But. Is it possible to use it as a Repeater Bridge when the host router isn't configured to be in the default 192.168.1.1 subnet? I've set everything from these instructions. I've also tried setting repeater router's IP address to be inside host's subnet, setting Gateway + DNS How do I set up my Linksys Router to work with my AT&T RG Jun 11, 2014
This works like a charm when using with windows xp. I have the main router downstairs and another named as "repeater" upstairs. Lately I installed ubuntu 8.10 on my laptop as well as the xp.
Youm can setup EA6100 as a Bridge router without knowing the IP Address of your ISP router. I did that recently when I cascaded a Linksys EA6100 to my primary router (Netgear X6 R8000) over a power-line adapter connection to the far end of my house that had a weak wifi connection. Follow the procedure in this linksys support-article: How to Turn an Old Router into a Wi-Fi Extender | Tom's Guide